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.

assturbation 

To pleasure the anal cavity of oneself with the intent of sexual gratification.
I really wanted to go down on her last night, but when I got home she was in the middle of an assturbation session to the new Justin Timberlake video.
assturbation by decamel August 28, 2013

Assturbate 

To bring oneself to orgasm by various acts of anal-simulation.
Vanilla masturbation doesn't work for me anymore, now the only way I can cum is if I assturbate.
Assturbate by Tenshin_ April 7, 2016

Assturbation 

Masturbation focused on pleasuring the butt, whether it be by massage or insertion.
Wow, this banana is frozen rock solid. I'm gonna have a good assturbation session tonight!

assturbation 

Masturbation restricted to the ass region. Usually performed by placing dildos, buttplugs, fingers, toothbrushes, or whatever else may be handy into the anal cavity. Lube is optional but highly recommended.
Suzy had never considered assturbation until she overheard Julie talking to Maria about shoving a 9 inch vibrator up her ass while fantasizing about Tom (Suzys dad).
assturbation by mindrape November 16, 2005

Assturdbation 

The act of stimulating the anus by excreting feces partially out of one's own ass, then allowing the natural pressure of the anus to suck the feces back into one's own rectum. The process is repeated to one's satisfaction.
Dude1: So I've been trying out assturdbation lately.
Dude2: Oh man, I tried that once, it didn't work for me. Too much leakage.
Dude1: Yeah man, you've got to change your diet to avoid all types of fiber.

assturbate 

masturbating in your ass, or to sodomize yourself
"I'm going to assturbate with a dildo"
assturbate by Seth and Sam July 11, 2009
More from Urban Dictionary
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
Load more