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.

Reverse Boner 

The exact opposite of a boner. The premise is that something turns you off so much that your weener goes inside out.
"...dude did you see that documentary about failed breast implants?...that gave me a total reverse boner"
Reverse Boner by SooperHans April 27, 2006

Reverse-Boner

When you see something so horrific, such as a disgusting girl/guy, it makes you penis want to go back inside of your body. A reverse-boner is rare and the sight you must see to induce a reverse-boner is beyond scarring. You will want to cry when you see the object or human that makes you want a reverse-boner.
Example 1
Guy 1: "Dude did you see Sarah Jessica Parker in her new movie????"
Guy 2: "Yeah bro she gave me a reverse-boner"
Example 2
Guy 1: "Did you go to the hospital yesterday?"
Guy 2: "Yeah a saw your girlfriend changing and i got a furious reverse-boner"

Reverse Boner 

When you see something so tragic that you get the opposite of a boner.
Boner: Hot girl has a wardrobe malfunction.

Reverse boner: You catch an old fat guy in your bed masturbating while he eats a fish a jelly sandwich and laughs at you because he hacked your Xbox profile and is ruining your great Call of Duty record. And he killed your newborn and sick kitten with the bone from the chicken that you were going to eat for lunch and is using the fur as a fake mustache.
Reverse Boner by GloverX10 January 1, 2011

reverse boner 

the exact opposite of a boner

when a someone does something or says something so gross it gives you the exact opposite feeling of a boner

when a girl looks so disgusting you puke in your mouth a little
Guy 1 "dude, i think that chick is checkin you out?"
Guy 2 "dude, she just gave me a reverse boner"

Reverse Boner 

The phenomenon that occurs when a penis becomes so unaroused that it contracts into an erect, albeit very tiny, state; usually due to the consumption of too much adderall, or a very intense workout.
Bro, you must be cracked out on adderall. I can totally see your reverse boner through your gym shorts.
Reverse Boner by Esteban Dos Ocho January 13, 2011

Reverse-Boner

n:

1. the state a man's penis enters when either the environment gets too cold for its liking, or theres an unnattractive woman in its midst. During this time, the penis will become shorter than usual, resembling a tree stump

2. When the penis secedes from its union with the vagina
a.) Some Guy: gawd its cold here, im getting a reverse-boner...

b.) Some Guy: Dude, i was holding hands with my girlfriend, and getting "You-know-who" (his penis) ready for "you-know-what" (blowjob), but some ugly hoe came along and gave me a reverse-boner!

c.)Some Girl: i was having sex with my bf, but when he was about to stick it in, he had a reverse boner...
More from Urban Dictionary
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
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
Load more