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backbite 

Backbite is when you talk shit behind your friends
She's always backbite her own friends, thats so mean!
backbite by famekilla May 27, 2017

Backside beans 

Small nuggets of poop that are about the size of a small grape, and that usually come out one at a time. Named so due to their round shape and small size.
"Ayo some dumb fuck left backside beans in the urinal! What the actual f-"

"Honey! Someone left backside beans on our porch... AGAIN..."
Backside beans by Suckmytoes_77 August 16, 2021

Butter my backside and call me biscuit 

Something white people say when they are suprised by something
Joe: Bro I got accepted into my dream college
John: well butter my backside and call me biscuit

backspace contest 

When to people are typing in a chat at the same time, and both backspace immediately once they see the other person is typing. The person to backspace the slowest (the chat message says they are still typing) is usually the one forced to send the next message.
Jake_H: Hey Jane I just wanted to say I liked spending time with you a lot last night and that naught stuff was great.

Jane103: I really like you too, we should get together soon cause our last hook up was so much fun, however it was kind of weird...

(Both are typing) Both backspace contest immediately to see what the other one has to say.
backspace contest by Kurt the flirt February 17, 2012

backside attack 

Proper: A chemistry term used to describe the transfer of electrons and subsequent bonding of a neucleophile to the back face of a molecule. The back side described is the chiral center, with subsistents in a tetrahedral formation facing away from the nucleophile. Once the backside attack is complete, the stereochemistry of the molecule is inverted.

chem eng slang: A difficult academic situation. It is often used to describe the difficulty of an assignment or a test. Synonymous with ass rape.
"Oh shit, that exam was a total backside attack!"
backside attack by Electrick April 17, 2006

backspiration 

Sweat from the back region, particularly the small of the back, that turns your shirt game upside down. Grey t-shirts are particular harbingers of backspiration. The hotter and more humid it is, the bigger the backspiration stain. Sigh.
“Oh man, sometimes I hate walking around the city in the summer. It’s like backspiration central.”
backspiration by atomandeve December 11, 2014
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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