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.

Rainbowsperm 

A type of sperm secreted by the vagina of a wolf named Seasonal, who resides peacefully on Wolf-Haven.com with her mate, Sheri, her pack, Shimmer, and her Chatbox friends, AKA The Douchebags. Rainbowsperm is dangerous, and when it comes in contact with another penis/vagina/mangina/pengina, a baby with moar rainbowsperm will be created (an example would be Sealiah).
Dylan is only awesome because he suffered a rainbowsperm attack.
Rainbowsperm by Seasonal April 28, 2011

rainbowsexual 

A gay man who is so gay that he classifies his gender to be every color in the rainbow
That man was so fruity, I wouldn't dought that he was one of them rainbowsexual people.
rainbowsexual by Perry_the _platypus February 16, 2018

ranboosmedia 

ranboosmedia said that i am their moot so now I am cool
hey! have you heard of ranboosmedia?
yea!! they are super cool :)
ranboosmedia by pey_urmom August 24, 2021

Rainbowsend 

The act of a woman licking one's own genitals
I was standing outside the pieshop and had a sudden urge to go to the rainbowsend

You exhibitionist biatch!
RANBOO BUT AS A BOOBIE!
“hey look ranboobie is live”
“wtf is a ranboobie”

“ranboo”
ranboobie by youhwtf May 17, 2021

Ranboosexual 

People who decide that they don’t mind crossing Ranboos boundaries. Don’t be Ranboosexual it’s wrong and makes Ranboo uncomfortable.
Nobody likes someone who is Ranboosexual
Ranboosexual by {enderm1t3} June 15, 2022
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
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