Skip to main content
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.

birth-control ass 

When a woman takes hormone altering pill like birth control pill, she is very liable to have her fat stored in one place on her body more so than others. In this case her ass. This is far more than mere "junk in the trunk"
you uses this term when her ass is grossly unproportioned to her body.
Shes only taller than me when we are sittign down because of her birth-control ass
birth-control ass by Ghanandanourf September 7, 2005

BIG ASS BERTHA

This is the type of fat ass who gets 6 handfuls of krispy kreme and says i'm a let one RIP PPPPPPPPPP and shits all over the wall.
BIG ASS BERTHA by #NIGGAMOMENT March 29, 2019

Ass Birthing 

Ass Birthing is a very strange fetish that involves a person holding in their shit for an extended period of time; sometimes for weeks or months at a time. Once the individual has decided that they are ready to "give ass birth", they attempt to push out all of the backed up fecal matter that has built up in their colon during the "hold it in" stage.

Ass birthing is very painful and is also terrible for your body. If the individual holds it in too long, it can be almost impossible to "shit it out", and at this point, the individual will need medical attention to remove the shit from their body. The ass birthing process is extremely painful, and usually causes anal hemorrhaging, and a horrible anal prolapse.

Ass birthers are extreemly masochistic, and usually end up inflicting life threatening harm on their bodies.
"Hey man, are you okay? You look like you are in a lot of pain?" - "Yeah, I'm fine, just in a lot of pain. Going through my second ass birthing, and it is constant pain. Going to try to make it 3 months this time before shitting!"

"Wow there is a lot of screaming coming from that bathroom!" - "Yeah, the moron is giving ass birth."

"I always wanted to go through the process of giving birth, but I'm a man; so I am an ass birth enthusiast."
Ass Birthing by aldougy February 26, 2014

Bartholomeu Ass 

A fucking legend himself, best name for a clan on apex, and the members probably get laid atleast 3 times a week. Also the single greatest name to ever be invented
Bartholomeu Ass rammed us in apex legends
1. Indicates that a person is abnormally interested in plants, gardening or anything related to nature.

2. Hippie-like
1. At the party last night, Keith bored everybody with his gardening stories. When he told me about his new bonsai project, I almost fell asleep. What a birch ass nigga.

2. "Get off my property, you birch ass communists!" yelled the senior citizen when he discovered the youths sitting in a circle around his tree while smoking pot.
Birch Ass by dirtyseepage November 8, 2011

Birthday Ass Pic 

Get a free ass picture for your birthday
1: It's my Birthday

2: For real? Here's a Birthday Ass Pic
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
Load more