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The Eraser 

The sexual maneuver that involves placing a large amount of baby powder between a person's butt cheeks and clapping them together as you would a pair of old chalkboard erasers.
"Dude, I totally gave her the eraser last night."
The Eraser by francis the mule November 11, 2018

The Eraser Game

When someone rubs their skin multiple times with an eraser causing the flesh to peel and it starts to sting after a while.
Person A: Ugh I played the Eraser Game yesterday and now my arm stings... And I have scars too!!

Person B: Dude you're retarded don't play that game. The scars take forever to disappear.

Bartholomew the eraser 

A very important eraser who is a leader of a group of three
Bartholomew the eraser is a loyal eraser

Clap the erasers

1) (common)To clap 2 chalk board erasers together to clean them and create a cloud of chalk dust, often fun when students are board.
2) (slang) To clap dem cheeks of the class slut.
1) Hey Tom! Go outside the class and clap the erasers!
2) Damn Tom, you really clap the eraser! Dude shes a hoe anyways.
Clap the erasers by Auty81 June 19, 2020

Clap the erasers

When I went to school in the 30’s, at the end of every day a couple of students were assigned to knock that day’s build up of chalk dust from writing on the blackboard. So, they would go outside and clap two erasers together for a couple of minutes to knock out the chalk dust.
Susan, you and Billy clap the erasers.
Clap the erasers by Amicare June 19, 2020

cleaning the erasers 

When two dudes go back to back and hit theirs butts together so that their boners clap between their legs.
Tom and jerry got in the showers and started cleaning the erasers until they both came
cleaning the erasers by Buttz4dayz February 9, 2015
More from Urban Dictionary
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
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
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