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.
if your a woman, and have a boyfriend and are talking to another guy behind your boyfriends back. you are his side chick, he is your side bro.
jack is my sidebro but ronald doesn't know!
sidebro by madethisup July 13, 2015
Related Words
The pleasuring of a man's penis using your butthole, aka sitting on a penis.
dude 1: Hey did you see that guys crank?
dude 2: Yeah, I totally wanted to jump off my Busa and sideboss him
sideboss by gootboxybox July 7, 2014
A view of the female breast seen from a side; generally under loosely-fitting clothes. Very titillating (pun intended) and sexual without showing any overt nudity.
There is so much sideboob at Los Angeles awards shows!

My brother's g/f's sideboob totally distracted me from my own g/f.
sideboob by Nutty J September 17, 2005
Word of the Day on January 16, 2009

Sidebreast 

The worst form of a sideman. Can be used for males and females.

Shows moistness, and overall the worst sideman behaviour. Usually leaves friends 'hanging'
"man, do you lift?"
"Yeah, I lift...my legs when I walk"
Sidebreast.

"wna come 2 the cinema 2day?"
"Nah, gotta expand my knowledge on land economy."
Sidebreast.

"spud me"
"..........nah"
Sidebreast.
Sidebreast by l337n3s5 March 11, 2013

sideblowin 

Everytime I see that fool lift one leg, I know he's sideblowin again.
sideblowin by dalycitybadgirl August 15, 2015

Siderodromophilia 

Sexual arousal from riding in trains.

See paraphilia.
Siderodromophilia is a bizarre sexual practice.
Siderodromophilia by Mistercity August 6, 2006
More from Urban Dictionary

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