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An act that you didn't do. Usually carries the connotation of remorse.
My greatest undeed was when I didn't hook up with that chick.
undeed by Ibud July 8, 2009
Related Words
To not be correct or right. Antonym: Indeed.
Undeed, the first college was the University of Wisconsin.
Undeed by Tader37 January 31, 2019

Undead Head

The art of receiving a blowjob while playing Call of Duty: Nazi Zombies.
Jenny, would you give me some undead head while I slay zombies?
Undead Head by JPin October 7, 2011

Briggsy the undead 

A foul malodorous dwarf that prowls the streets of Nottingham by night, looking for homeless teenagers to prey on. Once the victim has been located it is only a matter of time before this vile dwarf is feasting on their fresh young testicles. The victim is then lowered down a drain to be eaten by rats.
Fewer homeless people about these days.

Yes, you know why that is. Briggsy the undead has been culling them for the last year. Sucks their bollocks off according to legend.
Briggsy the undead by Turd Man August 2, 2009

a horrible pixelated shot of an underdeveloped highschool freshman in their underwear trying their best to make a seductive face 

The default picture used by over 84% of users of the popular networking site myspace (See definition #4).
-Man, she looks fine!
-Can't you tell? That's a horrible pixelated shot of an underdeveloped highschool freshman in their underwear trying their best to make a seductive face, dude.

Undead Army 

The Undead Army is the (rather large) group of fans who follow Hollywood Undead. Many of these "scenesters", as some would say, tend to wear masks to HU concerts, know many, most, or all of Hollywood Undead's songs, and the true Army is not afraid to show it's love for Hollywood Undead.

Undead for Life<3
Yeah, I'm in the Undead Army.
Yeah, I'm proud.
Yeah, I'm Undead for Life<3
Undead Army by sarahmichelle:) March 10, 2009
More from Urban Dictionary
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
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