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Knee-Necked 

The act of a police officer placing their knee on the neck of a person restrained on the ground thereby cutting off oxygen. Knee-necking for prolonged periods results in the person on the ground losing consciousness and, in some cases, ceasing to breath.
Kyle: Did you see what happened to that guy in Minneapolis?
Roger: No man, what happened?
Kyle: The cops knee-necked him and he died.
Roger: Damn, that's messed up.
Related Words

[citation needed] 

When you want someone to prove what they just said. Commonly seen in bad Wikipedia articles.
1: "Apparantly, the Greeks invented pudding!"

2:"citation needed"
[citation needed] by RussellLawliet December 31, 2011
The act of hitting someone ridiculously hard on the back of the neck
Damn, did you see him get necked that must have hurt like a bitch
Necked by Tuc Az September 7, 2016
Did you hear? Tom necked himself yesterday.

Pedophiles deserve to be necked.

Are you coming to the necking tomorrow?
Necked by Hreþsigor November 3, 2018

needed killing 

A regional term in the South and parts of the Southwest. A person can become such a trial and burden on those around hin that when someone finally shoots him, everyone who knew him says, "Well... He needed killing." It was often used in reference to outlaws when word arrived of their deaths.

In modern times the usage is more in terms of referring to a bad sort as "he needs killing". There are, however, several recorded instances where someone on trial for murder has attempted to use it as a defense - sort of a 'self-defense after long history of intolerable actions' kind of thing. Sometimes the dirty, rotten *&%#@%&#* NEEDED KILLING!
When a notorious criminal is executed: "He needed killing!"

Neefed It Up 

To mess up or cause a failure, this term was popularised by the YouTube Channel Oliver Aged 24 (HowToDrawReallyGood ) where Neef (a previous student of his) would show some of his pieces of work that he created using the tutorial, they are always terrible and referred to as being 'Neefed up'.
"You have Neefed it up"
"You've really Neefed this up!"
Neefed It Up by JoeAged13 June 1, 2013
More from Urban Dictionary
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
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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