Skip to main content
Sweanus.....after a workout, or hot summer day, or some steamy intercourse, the moisture that develops in the crack of your ass, is called, sweanus. More often than not, it refers to someone in the negative....because they may have actually just not showered in days, therefore creating a funky odor from 'back there'. Combines the two words sweaty and anus.....sweanus, VOILA!
Scene: Walking down the street with your friend, behind someone with a line of moisture on their pants (ya know, on the 'fault line'):

"Hey man, check out the sweanus on that back".
sweanus by MikeyRo September 26, 2006
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.
The uncomfortable feeling of a sweaty anus, usually experienced by those working outside during a hot and/ or muggy day.
Man, I can't take it anymore! I can't wait until break and then I can go take care of my terrible case of sweanus!
sweanus by avaraxus January 22, 2008
Related Words
There is no anus more famous than Swanus,
Swanus by bumptiousdood January 19, 2010
Origin: A portmanteau of sweats and jeans.

Sweans are an invention of the fashion industry in the 21st century originally designed as a hip substitute for "Mom Jeans". They offer the comfort of sweats without the "give up on life" attitude. Due to their tight fitting nature, sweans are not regarded as pants in some parts of the world. Not to be confused with swean.
That girl has one hella tight pair of sweans.
sweans by Quetzalcoatlus March 25, 2014
a groaning remark during a basketball game.
Boy T- i sweenus all the time everyday.
sweenus by attack12345 November 13, 2009
Having, or relating to a sweaty anus.
Man it's so hot today I got a mad case of swanus.
Swanus by Sean November 15, 2004
Seanus is quite cute.
Seanus by Mer October 17, 2003
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
Load more