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brains jump out the top like jack in the box 

(v) The act of shooting somebody in the head. Popularized by the 50 cent song 'Heat'
Man, I was playing Gears of War and made somebody's brains jump out the top like jack in the box.

David Bain Jumper 

A heavy, unstylish, old-fashioned winter jumper (pullover, sweater) most likely made of wool in a variety of colours such as that worn by David Bain upon his arrest for murdering his entire family. David Bain was convicted and later acquitted of the murder of his family.
I found a warm David Bain jumper at the charity shop.
David Bain Jumper by emzies November 24, 2019

Brainhump 

Scientists have now discovered that when two people who spend a significant amount of romantic time together, their brain waves synchronise. This is radio active and is loosely based on midi-chlorians (this has yet to be proven).

Some have lavishly coined the term the 'Brainhump'. When two brain waves meet radioactively, word babies are spawned in the mouth of both individuals simultaneously.
Boy: Pick a random letter on the keyboard.
Girl: ok

3 seconds later at the exact same time

Boy: s
Girl: s

Boy: BRAINHUMP!!!
Girl: BRAINHUMP!!!

Boy:omg twins ;D
Brainhump by WordBabyMaker June 13, 2012

Braindump 

A programmer giving a merely unreflected quickshot to solve a more or less complex problem and leaving tons of questionmarks behind for the next programmer which should read and understand (and fix) the braindump.
- Who the fu.. wrote this braindump?!

- I guess this must be a braindump from John.
- Im unable to understand this braindump, its easier to write the whole thing again.
Braindump by 8815 March 10, 2023
More from Urban Dictionary

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
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
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026
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