The surprisingly interesting history behind the phrase 'dead as a doornail'

A doornail really is deader than a regular nail.
"Old Marley was as dead as a doornail."
Charles Dickens' line from "A Christmas Carol" is probably the most famous example of the phrase "dead as a doornail," but it's certainly not the only one. Shakespeare used it in Henry IV Part 2: "Look on me well: I have eat no meat these five days; yet, come thou and thy five men, and if I do not leave you all as dead as a doornail, I pray God I may never eat grass more." An unnamed poet used the idiom for the first time in print in a poem published in 1350, but it's still not uncommon to hear it used today.
"Dead as a doornail" obviously means dead, deceased, definitively not alive. But why a doornail and not just a nail? All nails are dead by their nature of being metal, right? So why even use a nail at all? Why not "dead as a door" or "dead as a rock"? Those are dead, too. What makes a doornail specifically deader than other dead things?
There's a surprisingly interesting answer to that question. As it turns out there really is a good reason for specifying a doornail to convey being really, truly dead.
YouTube creator Malcolm P.L., who mostly makes videos about the history of armor, shared an explanation as well as a demonstration of what a doornail actually is:
So it turns out that a doornail isn't just a nail in a door, but a nail that cannot be removed and reused. Way back when, nails were made by hand and quite valuable. People would salvage and repurpose nails whenever they could. The way doornails were bent and driven into the backside of a door made it virtually impossible for them to be reused as a nail.
So not only are doornails dead simply because they're nails, but because their future potential for any other use is also dead. They are doubly dead, if you will. Extra deceased.
How many other idioms do we commonly use without knowing their full origins? Let the cat out of the bag? The whole nine yards? Spill the beans? Get someone's goat?
Language is so fascinating. Time to do some Googling.
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A Generation Jones teenager poses in her room.Image via Wikmedia Commons
An office kitchen.via
An angry man eating spaghetti.via 
At least it wasn't Bubbles.
You just know there's a person named Whiskey out there getting a kick out of this. 


An Irish woman went to the doctor for a routine eye exam. She left with bright neon green eyes.
It's not easy seeing green.
Did she get superpowers?
Going to the eye doctor can be a hassle and a pain. It's not just the routine issues and inconveniences that come along when making a doctor appointment, but sometimes the various devices being used to check your eyes' health feel invasive and uncomfortable. But at least at the end of the appointment, most of us don't look like we're turning into The Incredible Hulk. That wasn't the case for one Irish woman.
Photographer Margerita B. Wargola was just going in for a routine eye exam at the hospital but ended up leaving with her eyes a shocking, bright neon green.
At the doctor's office, the nurse practitioner was prepping Wargola for a test with a machine that Wargola had experienced before. Before the test started, Wargola presumed the nurse had dropped some saline into her eyes, as they were feeling dry. After she blinked, everything went yellow.
Wargola and the nurse initially panicked. Neither knew what was going on as Wargola suddenly had yellow vision and radioactive-looking green eyes. After the initial shock, both realized the issue: the nurse forgot to ask Wargola to remove her contact lenses before putting contrast drops in her eyes for the exam. Wargola and the nurse quickly removed the lenses from her eyes and washed them thoroughly with saline. Fortunately, Wargola's eyes were unharmed. Unfortunately, her contacts were permanently stained and she didn't bring a spare pair.
- YouTube youtube.com
Since she has poor vision, Wargola was forced to drive herself home after the eye exam wearing the neon-green contact lenses that make her look like a member of the Green Lantern Corps. She couldn't help but laugh at her predicament and recorded a video explaining it all on social media. Since then, her video has sparked a couple Reddit threads and collected a bunch of comments on Instagram:
“But the REAL question is: do you now have X-Ray vision?”
“You can just say you're a superhero.”
“I would make a few stops on the way home just to freak some people out!”
“I would have lived it up! Grab a coffee, do grocery shopping, walk around a shopping center.”
“This one would pair well with that girl who ate something with turmeric with her invisalign on and walked around Paris smiling at people with seemingly BRIGHT YELLOW TEETH.”
“I would save those for fancy special occasions! WOW!”
“Every time I'd stop I'd turn slowly and stare at the person in the car next to me.”
“Keep them. Tell people what to do. They’ll do your bidding.”
In a follow-up Instagram video, Wargola showed her followers that she was safe at home with normal eyes, showing that the damaged contact lenses were so stained that they turned the saline solution in her contacts case into a bright Gatorade yellow. She wasn't mad at the nurse and, in fact, plans on keeping the lenses to wear on St. Patrick's Day or some other special occasion.
While no harm was done and a good laugh was had, it's still best for doctors, nurses, and patients alike to double-check and ask or tell if contact lenses are being worn before each eye test. If not, there might be more than ultra-green eyes to worry about.