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.

mushroom slap

if someone happens to be getting fresh with you, mushroom slap them. This means pulling out your jimmy and making solid contact with their facial region.
C-dav definitely mushroom slapped that girl last period because she said "oh my gosh guys guess what happened?"
mushroom slap by drew s April 12, 2004

mushroom slap

Being slapped with a wang. Usually a hard wang.
"So this chick was blowin' some guy one day, and he pulled out and gave her a mushroom slap!"
mushroom slap by D.Socko May 8, 2004

Mushroom Slap

When a guy takes his hard dick, and swings it as hard as he can, hitting a person (hopefully a girl) on her body with his mushroom. If done correctly it will leave a mushroom imprint for several minutes with a lasting red spot afterwards.

(not easy to do)
ex) mushroom slap her in the face and it will leave a mark. very funny. total ownage

Mushroom slap of death

When u slap a bitch so hard with ur pee pee that she gets goes retarded
I herd Jenny got the mushroom slap of death now she’s in in special ed class

chocolate mushroom slap 

After having anal sex to slap someone across the face with one's penis leaving a rectal juice mark. mushroom slap
James:"Hey Ron what happened to Adee's face?"
Rondel:"After taking her ass virginity, I gave her a chocolate mushroom slap and I guess I left a mark."

Intergallactic Mushroom Slap 

A Mushroom Slap delivered with such force that; a bruise, swelling, permanent tissue damage, or even breakage to the jaw is resultant.
"My God Charlie, what happened?-are you ok?"

"Ben gave me an Intergallactic Mushroom Slap. Because he's on parole the government is footing the cosmetic surgery bill, so hopefully I'll be able to laugh about it in years to come."
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
Load more