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a word used as a comeback when you have no other comeback to use: a word used to get someone to leave you alone

another term for "your mom"
"Hey what are you eating?"
"ur mum."
ur mum by olafsfluffyD December 8, 2015
The insult of all insults. When you're stuck and have nothing to say, just say 'ur mum'.
"This pizza is still warm"
"Ur mum's pussy is still warm...hurhurhurhur".
ur mum by p00_p00 August 30, 2006
wen ur frin bein a cheky cunt n da call of duds u jus sey ur mum
"fukin cheky cunt ur mum is hairy"
ur mum by YOOOOOOOOOOOO March 31, 2015
A unstoppable force, when your hit with a Ur mum, you should just accept your fate, your life is over.
Joe: Hey do you wanna come over after school?

Bob: No sorry I’m doing ur mum after school.

It was at this moment, Joe got folded
Ur mum by Harpy🦅 October 19, 2021
ur mum gae
ur mum by Taytek May 21, 2019
The apparent zenith of comebacks, used almost exclusively by 12-16 year olds.
Person 1: You sir, are a veritable nincompoop.
Person 2: ERR UR MUM LOL!1!

'I AD SEX WIV UR MUM LOL'
ur mum by Dougal September 27, 2004
More from Urban Dictionary

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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