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Lethal Dosage. L.D. is a pharmacological term used by the medical industry to standardize the toxicity of chemicals, specifically. In huge medical books, medical scientists and doctors have a standardisation for every single thing that you can possibly have in your body.
The man was slipped arsenic, which is L.D. 100.
L.D. by Dybbuk March 8, 2005
Words you can keep
learning disability
You have to use small words because Beckys l.d.
l.d. by konichiwakitty August 15, 2003
Related Words
L-dub l&d L-dawg l'dol L-Day L-Dogg L dot L'drop l.dybug l@d
Nickname for some one that drinks way too much,or is an alcoholic. I.e: Liver Damage.
"When I saw that girl throwing up in the bathroom i yelled, 'are you alright L.D?'"
"I saw the town L.D today."
L.D by K$dawg February 27, 2009
Biff wasn't feeling so hot after a 2 day bender with his lover, Sally Sue. He started to feel a little like a shell of himself, seeing shadow figures jumping around in the corners of his plane of sight. He figured it might be time to pack it in for a while and recoup. Alas! Lucky for him, he was hanging out with his friend Dick York who is hailed as the King of L&D! Lil Dicki told Biff that "Sleeping is for chumps! You can sleep when you're dead!" So, Biff ripped a few lines, slugged a few shots, and went back for round 3 of the bender and with his dank skank mami, Sally Sue, who was in the bedroom ass up ready to rumble again! Praise Be to the king of L&D!
L&D by DaddiMcMami December 16, 2021
L.D. Has an amazing personality. He knows how to have a good laugh and have a good time. He's always there to cheer you up when you feel blue. He cusses a bunch and even talks dirty sometimes, but he's super cool. And the one thing he will never do is let down his girl. He always lets her know he loves her and wouldn't do anything to hurt that.
Girl 1: That guy is such a L.D.
Girl 2: I know! I wish he liked me though!
L.D. by Br111_th3_b43 March 3, 2015
I got drunk & hurled on my boss...l@d
l@d by belve January 30, 2010
hey baby you wanna go get some l&d?
l&d by madrya June 16, 2016
More from Urban Dictionary

Literally 1984 

Used in response for when someone promotes/advocates an event or idea that is perceived to support "too much" authority and/or government control.

Often used jokingly as a over-exaggeration in political talk.

Can also be used in response to a ban or mute in a forum site or online chat.
Steve: I think that the government should regulate businesses more
Bob: Literally 1984!

--User1 has been permantly banned--
User2: You cant ban my friend like that! Literally 1984!
Literally 1984 by ke1 July 7, 2021
Word of the Day on September 1, 2026

Back when I lived in upstate new york 

A meaningless, unimpressive, self-serving introduction. An indicator that the story about to be shared will be pointless and dumb.
Back when I lived in upstate new york, I also had to park on the street - on two occasions, we got enough snow, mixed with just the right plowing, that my car was lifted off the ground from so much snow being jammed underneath it.
Word of the Day on August 31, 2026
Acronym, meaning Too Long Didn't Understand
Similar to TLDR
Sister: This meeting was to discuss the rough draft of my essay, where we discussed the subsidiary questions I added in my rough draft. We also discussed the relationship between my main title and the real-life situations I chose to use in my essay. We discussed the structure of my essay as well, specifically the Math AOK section and how it relates to the contradiction of the title. This second meeting was particularly helpful in discussing the implications of my essay claims and how to apply the title across various areas of knowledge. There were many sections of the essay that could have been cut down in wordiness and the ways of knowing required further and more in-depth analysis.

Me: Woah! TLDU!
TLDU by L-Evans January 14, 2019
Word of the Day on August 30, 2026
the act of having anonymous sexual encounters with other men in public toilets.
Cottaging by greeef April 24, 2003
Word of the Day on August 29, 2026

Salad Days 

green inexperienced youthful judgement and cold blooded execution of those judgements.

Rashness with little concern of consequence.

Antony and Cleopatra. William Shakespeare

"My salad days,
When I was green in judgment, cold in blood."

- William Shakespeare, Antony and Cleopatra, 1.5
"How did you end up in jail?"

"Salad days, 'nuf said."
Salad Days by GilbyRFC0 October 7, 2011
Word of the Day on August 28, 2026

age gate 

An absolutely foolproof way to keep minors from viewing content deemed "too mature" for them to watch.
Billy: "So I was trying to watch some videos for an M rated game, and I ran into an age gate, so I put in my real birthday. SOMEHOW it managed to figure out that I am 12. CURSE YOU AGE GATE!!!"

Bill: "Fucking age gate! *quick scroll* THERE! I was born on January 1, 1904. Fuck you age gate."
age gate by Banja January 7, 2011
Word of the Day on August 27, 2026

board chow 

A)
The Crud that collects under the keys in a keyboard. Usually more severe in the keyboards of programmers and webmasters as they tend to spend a lot of time at the the computer and thus eat at their desk. Mainly affecting IBM Model M (clicly) style boards.

B)
Can also be used to gross out Non-Techie people
A)
Bill: want to go to the club?
Bob: No, I've got to clean out my board chow, keys are starting to stick.

B)
Bill: Want to go out to get a bite?
Bob: No, i am just going to have some of my board chow/
Bill: Whats' that?
Bob: The food scraps that collect in my keyboard; Want some?
Bill: *GAG* *HURL* *GAG*
board chow by BinaryHackerMan September 3, 2007
Word of the Day on August 26, 2026
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