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13 everyday idioms that make zero sense until you know where they come from

Sweating like a pig? Pigs don't sweat!

slice of cake, sleeping baby, horse
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I've always really liked cliches, idioms, proverbs, and common phrases that we like to use over and over. They can get repetitive at times, but they're crucial tools in communication. They allow us to convey so much meaning in so few words — a commonly understood shorthand that can get complex points across quickly.

The only problem is that many of the most popular idioms in common use date back hundreds of years. In that time, they've either become outdated, or seen their words adopt new meanings. In some cases the idioms have been shortened or reversed, losing important context. So when someone tells you to "bite the bullet," you may inherently know what they mean — but if you really stop and think about it, you have no idea why it means what it means.

If you're a word nerd like me, you'll be absolutely fascinated by the origin and evolution of some of these common idioms, and how they came to mean what they mean today.

1. Sick as a dog / Working like a dog

dog typing on laptopGiphy

Ever have a cold and tell someone you're "sicker than a dog?" Kind of rude to dogs, in my opinion, and a little strange. I've had dogs my whole life and can't remember any of them coming down with the flu.

Sick as a dog actually originates hundreds of years ago, if not longer. Some explanations say that in the 1700s, stray dogs were responsible for the spread of many diseases, along with rats and other gutter critters. There are also references as far back as the Bible to dogs eating their own vomit — sounds pretty sick to me.

What about working like a dog? Dogs are the laziest creatures around! For this one you have to remember that dogs as "pleasure pets" is a relatively recent phenomenon, and before that they had to earn their keep by working tirelessly on the farm to herd and protect the animals.

2. Sweating like a pig

This is an extremely common idiom that we all use and accept. There's just one problem with it. Pigs don't sweat!

So... what gives? You might be surprised to hear that 'sweating like a pig' actually has nothing to do with farm animals.

According to McGill University: "The term is actually derived from the iron smelting process in which hot iron poured on sand cools and solidifies with the pieces resembling a sow and piglets. Hence 'pig iron'. As the iron cools, the surrounding air reaches its dew point, and beads of moisture form on the surface of the 'pigs'. 'Sweating like a pig' indicates that the "pig" (ie iron) has cooled enough to be safely handled. And that's a "pig" you wouldn't want to eat."

idioms, bite the bullet, bullets, guns, ammunitionA person holds a plate with bulletsImages via Canva

3. Bite the bullet

Biting the bullet refers to sucking it up and doing something hard, something you don't want to do but is necessary, and accepting the difficult consequences and/or pain that comes with it. But what does that have to do with biting a bullet?

There are different theories on this. One common explanation is that in the olden days it was common for soldiers on the battlefield receiving surgery to bite down on a lead bullet. You've probably seen people in moving biting down on a piece of wood or leather strap. Since lead is a softer metal, it would give just a little bit between their teeth and not damage them. So the idiom 'biting the bullet' means, okay, this is going to suck, just bite down and get through it.

idioms, horses, healthy as a horse, animals, sayingsA horse making a funny faceImage via Canva

4. Healthy as a horse

This one has always confused me. As a layman, it seems like horses are prone to injury and have trouble recovering when they hurt themselves. More research shows that horses can not vomit, which means they are highly at risk for deadly colic episodes. Doesn't sound super healthy!

The best explanation I can find for healthy as a horse is that, again, in the olden days, horses were symbols of health and strength and vitality. Which checks out — they're really powerful, majestic creatures.

idioms, slept like a baby, babies, kids, children, sayingsA baby with glasses sleeping on a moon pillowImage via Canva

5. Slept like a baby

To many parents, this common idiom is rage-inducing. If babies sleep so well, why am I so exhausted all the time?!

Yes, babies are notorious for waking up every few hours or at the first sign of hunger or a dirty diaper. It puts their parents through the wringer (another strange idiom!). But to the outside observer, a sleeping baby is pure bliss. They are so innocent and blissfully unaware of anything going on around them — after all, if they're not sitting in a dirty diaper they really don't have too many other things to worry about. Also, despite all their shenanigans, babies do sleep a lot — around 17 hours a day or so. When you put it that way, the idiom starts to make a little sense.

idioms, clams, happy as a clam, seafood, sayingsOcean Seafood GIF by Lorraine NamGiphy

6. Happy as a clam

Clams are a lot of things. Some people find them delicious, others disgusting. One thing I think we can all agree on is that clams don't seem particularly happy, which makes this idiom a bit of a conundrum.

The truth is that this phrase is actually derived from the full version: "Happy as a clam at high water."

At low water, or low tide, clams are exposed to predators. At high tide, they're safe in deeper water. That's about as happy as mollusk can get!

idioms, pudding, proof is in the pudding, sayingsGiga Pudding Snack GIFGiphy

7. The proof is in the pudding

Hey, we all love pudding. But what the heck does this mean? If you're not familiar, it refers to judging something based on the results it generates — but what that has to do with pudding is a bit of a mystery to most people.

This is another example of a shortened idiom that makes more sense when you read the full, original line: "The proof of the pudding is in the eating."

According to Dictionary.com it "originated as a reference to the fact that it was difficult to judge if the pudding was properly cooked until it was actually being eaten. In other words, the test of whether it’s done is taking a bite."

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8. Don't look a gift horse in the mouth

I've always been a big fan of this idiom, which basically means that it's rude to over-analyze or criticize something you got for free, especially when it was a nice gesture from a friend or loved one.

But here we go with horses again! This phrase likely originated from the fact that you can determine a horse's age and health by looking at its teeth. So if someone were to give you a horse as a gift, it would be rude to immediately try to see how "good" it was by looking in its mouth.

idioms, clean as a whistle, kids, sayings, whistlesA young boy blows a whistle Image via Canva

9. Clean as a whistle

Whistles are objectively disgusting. They collect spit and germs every time they're used. I certainly wouldn't hold them up as a beacon of cleanliness.

So what gives with this idiom? There are several possible explanations that have been proposed.

First, a whistle won't work, or won't work very well, if it has debris blocking up its inside. So you can think of "clean" in this case as being "empty or free of clutter." Another possibility is that, in this idiom, clean refers to sharpness — as in the sharp sound a whistle makes — and that inference has been lost over time.

idioms, pull yourself up by your bootstraps, sayings, valuesTwo women laugh looking at a laptop screenImage via Canva

10. Pull yourself up by your bootstraps

This phrase is commonly use to describe someone who was "self-made" and built themselves up into a success from nothing. Imagine lying on the floor and hoisting yourself to your feet using only the straps on your boots.

The only problem is... that's impossible! And that's exactly the point. This idiom is actually meant to be sarcastic and to imply that "socioeconomic advancement... was an impossible accomplishment," according to Useless Etymology.

11. Have your cake and eat it too

cartoon cake sliceGiphy

Why bother having a cake if you can't eat it? That's the mystery of this extremely common idiom or proverb (sometimes worded "you can't have your cake and eat it, too")

The explanation is actually really simple. "Have" in this case really means "keep" or "hold onto." So, in that case, it makes perfect sense that you can't eat your cake and also still have it. "You can't have it both ways," would be another way of saying it.


12. Head over heels

Very rarely do people describe being deeply in love without using this phrase. But it's a confusing one, because isn't your head always over your heels? That doesn't seem to be an extraordinary state of being.

The idiom here has actually been flipped over time for unknown reasons. Originally, it went "heels over head", implying upside down. Some say it may also reference certain sexual positions...

idioms, pushing the envelope, exercise, gyms, workouts, sayingsTwo women at a gym push an oversized envelopeImages via Canva

13. Pushing the envelope

When I think of radical, risky, or pushing the limits of what's possible, sliding an envelope across a table just somehow doesn't quite capture it for me. But an envelope doesn't have to be just a paper container that you put other paper in. It can actually refer to different parts and practices of an aircraft.

"Push the envelope comes from aeronautics, where it refers to a set of performance limits that may not be safely exceeded," according to Merriam Webster. Now that's more like it!

Can you grow vegetables in a cardboard box?

In the era of supermarkets and wholesale clubs, growing your own food isn't a necessity for most Americans. But that doesn't mean it's not a good idea to try.

A household garden can be a great way to reduce your grocery bill and increase your intake of nutrient-dense foods. It can also be a good source of exercise and a hobby that gets you outside in the sunshine and fresh air more often. However, not everyone has a yard where they can grow a garden or much outdoor space at all where they live. You can plant things in containers, but that requires some upfront investment in planters.

container garden, growing plants in containers, growing vegetables, homegrown, producePotted plants and herbs can thrive in a container garden.Photo credit: Canva

Or does it? Gardener James Prigioni set out to see if an Amazon shipping box would hold up as a planter for potatoes. He took a basic single-walled Amazon box, lined it with dried leaves to help with moisture retention, added four to five inches of soil (his own homegrown soil he makes), added three dark red seed potatoes, covered them with more soil, added a fertilizer, then watered them.

He also planted a second, smaller Amazon box with two white seed potatoes, following the same steps.

Two weeks later, he had potato plants growing out of the soil. Ten days after that, the boxes were filled with lush plants.

- YouTubewww.youtube.com

Prigioni explained how to "hill" potato plants when they grow tall enough, which helps encourage more tuber growth and protect the growing potatoes from sunlight. Hilling also helps support the plants as they grow taller so they don't flop over. He also added some mulch to help keep the plants cooler as the summer grew hotter.

After hilling, Prigioni only needed to keep up with watering. Both varieties of potatoes flowered, which let him know the tubers were forming. The red potato leaves developed some pest issues, but not bad enough to need intervention, while the white potato plants were unaffected. "It goes to show how variety selection can make a big difference in the garden," he explained.

The visible plants have to start dying before you harvest potatoes, and Prigioni checked in with the boxes themselves when they got to that point.

vegetable garden, growing potatoes, grow potatoes in a cardboard box, Amazon box, farmingFreshly harvested potatoes are so satisfying.Photo credit: Canva

"I am pleasantly surprised with how well the boxes held up," he said, especially for being single-walled boxes. The smaller box was completely intact, while the larger box had begun to split in one corner but not enough to affect the plants' growth. "This thing was completely free to grow in, so you can't beat that," he pointed out.

Prigioni predicted that the red potatoes grown in the larger box would be more productive. As he cut open the box and pulled potatoes from the larger box, they just kept coming, ultimately yielding several dozen potatoes of various sizes. The smaller box did have a smaller yield, but still impressive just from two potatoes planted in an Amazon box.

People often think they don't have room to grow their own food, which is why Prigioni put these potato boxes on his patio. "A lot of people have an area like this," he said.

"I will never look at cardboard boxes the same," Prigioni added. "There are so many uses for them in the garden and it's just a great free resource we have around, especially if you're ordering stuff from Amazon all the time."

cardboard box, container garden, amazon box, growing vegetables, gardeningDo you see a box or do you see a planter?Photo credit: Canva

People loved watching Prigioni's experiment and shared their own joy—and success—in growing potatoes in a similar fashion:

"I have been growing potatoes in every box I can find for several years now. I have had excellent success. I honestly think potatoes prefer cardboard. And yes, most of my boxes were from Amazon."

"I live in an upstairs apartment with a little deck and I have a container garden with containers on every single stair leading to the deck. I grow potatoes in a laundry basket. It's amazing how much food I can get from this type of garden!! Grateful."

"I literally got up and grabbed the empty boxes by our front door, the potatoes that have started to sprout, and soil i had inside and started my planting at 1am. Lol. I will take them outside today and finish. Thank you James!"

"I grew potatoes and tomatoes on my tiny balcony in Germany (in buckets and cardboard boxes). Now I have a big garden here in America. I so love to grow my own food."

"I grew sweet potatoes in cardboard boxes. It’s so much fun."

Next time you're stuck with an Amazon box that you don't have a use for, consider whether you could use it as a planter for potatoes or some other edible harvest. Gardening doesn't have to be fancy to be effective.

You can find more of gardening experiments on The Gardening Channel with James Prigioni.

A map of the United States post land-ice melt.

Land ice: We got a lot of it. Considering the two largest ice sheets on earth — the one on Antarctica and the one on Greenland — extend more than 6 million square miles combined ... yeah, we're talkin' a lot of ice. But what if it was all just ... gone? Not like gone gone, but melted?

If all of earth's land ice melted, it would be nothing short of disastrous. And that's putting it lightly. This video by Business Insider Science (seen below) depicts exactly what our coastlines would look like if all the land ice melted. And spoiler alert: It isn't great. Lots of European cities like, Brussels and Venice, would be basically underwater.

I bring up the topic not just for funsies, of course, but because the maps are real possibilities.

How? Climate change.

As we continue to burn fossil fuels for energy and emit carbon into our atmosphere, the planet gets warmer and warmer. And that, ladies and gentlemen, means melted ice.

A study published this past September by researchers in the U.S., U.K., and Germany found that if we don't change our ways, there's definitely enough fossil fuel resources available for us to completely melt the Antarctic ice sheet.

Basically, the self-inflicted disaster you see above is certainly within the realm of possibility.


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In Africa and the Middle East? Dakar, Accra, Jeddah — gone.



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Millions of people in Asia, in cities like Mumbai, Beijing, and Tokyo, would be uprooted and have to move inland.



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South America would say goodbye to cities like Rio de Janeiro and Buenos Aires.


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And in the U.S., we'd watch places like Houston, San Francisco, and New York City — not to mention the entire state of Florida — slowly disappear into the sea.


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All GIFs via Business Insider Science/YouTube.

Business Insider based these visuals off National Geographic's estimation that sea levels will rise 216 feet (!) if all of earth's land ice melted into our oceans.

There's even a tool where you can take a detailed look at how your community could be affected by rising seas, for better or worse.

Although ... looking at these maps, it's hard to imagine "for better" is a likely outcome for many of us.

Much of America's most populated regions would be severely affected by rising sea levels, as you'll notice exploring the map, created by Alex Tingle using data provided by NASA.

Take, for instance, the West Coast. (Goodbye, San Fran!)



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Or the East Coast. (See ya, Philly!)


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And the Gulf Coast. (RIP, Bourbon Street!)

"This would not happen overnight, but the mind-boggling point is that our actions today are changing the face of planet Earth as we know it and will continue to do so for tens of thousands of years to come," said lead author of the study Ricarda Winkelmann, of the Potsdam Institute for Climate Impact Research.

If we want to stop this from happening," she says, "we need to keep coal, gas, and oil in the ground."

The good news? Most of our coastlines are still intact! And they can stay that way, too — if we act now.

World leaders are finallystarting to treat climate change like the global crisis that it is — and you can help get the point across to them, too.

Check out Business Insider's video below:


- YouTubewww.youtube.com


This article originally appeared eleven years ago.

Photo courtesy of Kerry Hyde

Do cat buttholes touch every surface they sit on? Science answers.

Cat owners sometimes have unique questions that even Google doesn't always have the answer to. This is probably the sole reason cat forums exist, but one kid who needed a 6th grade science project decided to skip the cat forums for answers and instead use the scientific method. Kaeden Henry, a sixth grader living in Florida, bravely pondered a question few (if any one) has been brave enough to ask: do cat buttholes touch every surface they sit on?

Since cats do whatever the heck they want, training them not to jump on kitchen counters is a feat even Hercules struggles to complete. These fierce felines don't care if you're cooking dinner or trying to get comfy in bed. If they want to sit somewhere, they're going to do it. The thought of cat butts on that expensive Serta pillow designed to feel like you're sleeping on a cloud can gross people out, but thanks to Kaeden, you no longer have to wonder if the butthole itself is also making contact.

Courtesy of Kerry Hyde

The curious sixth grader is homeschooled and well-versed in the scientific method thanks to her mother's PhD in animal behavior with a concentration in feline behavior. And, since they own cats, the science experiment was pretty straightforward (and directly impactful).

To complete the experiment, Henry and his mom, Kerry Hyde, bought non-toxic lipstick and applied it to each of their cat's anuses. Then, the cats were given commands.

Courtesy of Kerry Hyde

"Non-toxic lipstick was applied to their bum-bums, they were then given a series of commands (sit, wait, lie down, and jump up. Side note: Both cats have been trained since kittenhood with a variety of commands, they also know how to high-five, spin around, and speak.), they were compensated with lots of praise, pets, and their favorite treats, and the lipstick was removed with a baby wipe once we collected our data in just under 10 minutes," Hyde wrote in a Facebook post.

The results? Turns out that, no, cat buttholes do not touch every surface cats sit on. Now, let's all take a collective sigh of relief while we go over the details. Kaeden's experiment covered long-haired, short-haired, and medium-haired cats (if your cat is hairless, you better stock up on Clorox wipes just in case).

"His results and general findings: Long and medium haired cat’s buttholes made NO contact with soft or hard surfaces at all. Short haired cats made NO contact on hard surfaces. But we did see evidence of a slight smear on the soft bedding surface. Conclusion, if you have a short haired cat and they may be lying on a pile of laundry, an unmade bed, or other soft uneven surface, then their butthole MAY touch those surfaces!" Hyde shares.

Now every curious cat owner can rest easy knowing that as long as their cat has hair, their bare bottom balloon knot is not touching the majority of surfaces in their home.

Courtesy of Kerry Hyde

The amusing experiment caught the Internet's attention. People laughed and commented, with one person writing, "This is probably the most useful information I’ve learned from a science fair project."

"Good to know!...I can now eat my sandwich left on the counter with confidence!" another writes.

Courtesy of Kerry Hyde

"A+++!!! Whew!! I am very grateful for your sciencing on this subject. My fears from walking in on my cat sitting on my laptop keyboard and subsequently being grossed out and cleaning furiously in a hyper-ocd manner have been somewhat allayed and now maybe I won’t have to use QUIIITE so many wipes." someone chimes in.

"Finally.. Someone answers the important questions!!"

Angelo Merendino

Angelo Merendino with his late wife Jennifer

When I saw these incredible photos Angelo Merendino took of his wife, Jennifer, as she battled breast cancer, I felt that I shouldn't be seeing this snapshot of their intimate, private lives. The photos humanize the face of cancer and capture the difficulty, fear, and pain that they experienced during the difficult time.

But as Angelo commented: "These photographs do not define us, but they are us."

In his photo exhibition, Angelo wrote:

"Jennifer was diagnosed with breast cancer five months after our wedding. She passed less than four years later. During our journey we realized that many people are unaware of the reality of day to day life with cancer. After Jen’s cancer metastasized we decided to share our life through photographs."

All images by Angelo Merendino, published here with permission.


cancer, cancer treatment, marriage, love, love storiesAngelo and Jennifer drink beersassets.rebelmouse.io

On his website, Angelo writes:

"With each challenge we grew closer. Words became less important. One night Jen had just been admitted to the hospital, her pain was out of control. She grabbed my arm, her eyes watering, 'You have to look in my eyes, that’s the only way I can handle this pain.' We loved each other with every bit of our souls. Jen taught me to love, to listen, to give and to believe in others and myself. I’ve never been as happy as I was during this time."

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"People assume that treatment makes you better, that things become OK, that life goes back to 'normal,' Angelo wrote. "There is no normal in cancer-land. Cancer survivors have to define a new sense of normal, often daily. And how can others understand what we had to live with everyday?"

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This article originally appeared thirteen years ago.

What is "boomer panic"?

In a video posted in September 2023, TikToker @myexistentialdread used the phrase “boomer panic” to explain how baby boomers (1946 to 1964) can quickly become unhinged when faced with the most minor problems. It all started when she visited a Lowe’s hardware store and encountered a boomer-aged woman working at the check-out stand.

“I had a dowel that didn’t have a price tag on it, whatever, so I ran back and took a photo of the price tag. And as I was walking back towards her, I was holding up my phone… because I had multiple dowels and that was the one that didn’t have the price tag on it,” she said in the video. “And she looks at me and she goes, ‘I don’t know which one that is,’ and she starts like, panicking.” The TikToker said that the woman was “screechy, panicking for no reason.”

Many people raised by boomers understood what she meant by "boomer panic." "Boomer panic is such a good phrase for this! Minor inconvenience straight to panic," the most popular commenter wrote. And while there was some boomer-bashing in the comments, some younger people tried to explain why the older folks have such a hard time regulating their emotions: “From conversations with my mother, they weren’t allowed to make mistakes and were harshly punished if they did.” The TikToker responded, “A lot of people mentioned this, and it breaks my heart. I think you’re right,” Myexistentialdread responded.

A follow-up video by YourTango Editor Brian Sundholm tried to explain boomer panic in an empathetic way.

“Well, it's likely that there actually was a reason the woman started panicking about a seemingly meaningless problem,” Sundholm said. “Most of us nowadays know the importance of recognizing and feeling our emotions.” Sundholm then quoted therapist Mitzi Bachman, who says that when people bottle up their emotions and refuse to express them, it can result in an "unhinged" reaction.

TikToker Gabi Day shared a similar phenomenon she noticed with her boomer mom; she called the behavior “anxiety-at-you.”

Day’s boomer mother was “reactive,” “nervous,” and “anxious” throughout her childhood. Now, she is still on edge with Day’s children. “She's immediately like gasping and just really like exaggerated physical reactions, and then, of course, that kind of startles my kid,” Day said. “Again, I know that this comes from a place of care. It's just a lot,” she continued.

@itsgabiday

It comes from a place of love but it is exhausting 🫠😬 #millennialmomsoftiktok #boomergrandma #reparenting #gentleparenting

There is a significant difference in emotional intelligence and regulation between how boomers were raised and how younger generations, such as Gen X, Millennials, and Gen Z, were brought up. Boomers grew up when they had to bottle up their feelings to show their resilience. This can lead to growing anger, frustration with situations and people, chronic stress, and anxiety—all conditions that can lead to panicky, unhinged behavior.

Ultimately, Sundholm says that we should sympathize with boomers who have difficulty regulating their emotions and see it as an example of the great strides subsequent generations have made in managing their mental health. “It may seem a little harsh to call something "boomer panic," but in the context of how many of them were raised, it makes a lot of sense,” Sundholm says. “It also underlines the importance of emotional regulation skills and teaching them to future generations. And maybe most important, having compassion for those who never had a chance to learn them.”

This article originally appeared in March