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On the back wheel 

Riding a "bike" in hashbourne
"Aisling kenny on the back wheel say mup "
"MUP vroom vroom"
On the back wheel by Asho69xoxo December 20, 2017

hairy back wheels 

Either one of the two oval organs that produce sperm in men and other mammal males enclosed in the scrotum behimd the penis
That guy has a big set of hairy back wheels
hairy back wheels by Spanno October 6, 2015

back wheels 

Derived from the shape of a tricycle, the back wheels are the testicles to the front wheel's penis
Whilst shagging a massive monster of a woman, I slipped the back wheels in.
back wheels by Secretive Jim January 13, 2005

back wheels 

back wheels also known as a pair of bollocks or nuts
look at the size of his "back wheels"
back wheels by john rawlings September 18, 2004

Getting the back wheels up

To stick your dick and balls into a pussy at the same time
Ive been getting the back wheels up a fair bit lately on my new cum rag

Road rash on my back wheels 

This means to stick your dick and balls into a gay dudes asshole and take it out with poop on it
I got road rash on my back wheels
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
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