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Mustard Ass 

Someone whose ass emits an odor strong enough to create casualties reminiscent of WWI's Mustard Gas.
Mike 'Mustard Ass' Dukes, has a weapon of extraordinary proportions in his arsenal.
Mustard Ass by Krazy Kraka February 24, 2004

ass mustard 

The brownish-yellow discharge found in one's undergarment after an evening of junk food and/or bad beer. It can be delivered by flatulence, or a steady leak.
Boy howdy! your drawers are loaded with ass mustard!!!
ass mustard by biggdogg September 4, 2003

Hot Yellow Ass Mustard 

Hot Yellow Ass Mustard: the result of anally straining oneself beyond one's limits then exposing that matter to a heated element.
After we ate the bean burrito we had a farting contest in which Matt pushed too hard and sprayed ass mustard all over the space heater causing it to become hot yellow ass mustard.

Mustardass 

A yellowish tint on your toilet paper without going #2 caused by sweaty ass and not using toilet paper corectly
Man Ive worked all day in this heat I bet I got mustardass.
Mustardass by superskaggs August 29, 2009

Cum in your mums asshole with mustard 

Its when you cum into your mom's asshole but you are spraying mustard on her tits
"Hot"
Cum in your mums asshole with mustard
Its when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into your mom's asshole but you are spraying mustard on her titsIts when you cum into y
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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