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smell your ma 

A derogitory comment, which one says to piss off someone else. Often accompanied by holding two fingers under the nose of the victim.
JJ: Your Gay

Lars: No im not, Smell your ma. I had her last night, oh and once this morning!

JJ: Fuck off
smell your ma by Larry Sanchez September 1, 2008

back your mash

Mash means a firearm.
‘back your mash’ means to use your gun to defend yourself in any conflict or altercation.
Used by J.B2 in Russ's tune Link Up
J.B2: Man back your mash and bop with a different sauce

Wright Your Mask 

When your fighting fire and dont want your face burned.
Wright your mask Jones!!!
Wright Your Mask by DudeAdam March 25, 2011

Took away your masturbating right 

Overreaction over something insignificant and mundane
Geez! It was just a watch. Stop hyperventilating. Don't act like someone "took away your masturbating right".

Yeet is your master now

My first under-cover name in years
guy1: is that **** *******?
guy2: Nah thats Yeet is your master now
Yeetisyourmasternow: h e l l o y o u n g l i n g s

Pull your mask down 

The worst thing a person can hear.
Person 1: Pull your mask down let me see your face.
Person 2 *dies*
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
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
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