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Ball bearings 

When you orgasm so hard you are dizzy and are trying to get your balance.

Usually said while trying to get them a towel or glass of water.
"I came so hard, hold on while I get my ball bearings"
Ball bearings by Tyler_dm November 10, 2019

Ball bearings 

Another nickname for male testicles.
As Mark gets to his chance with Sophie he begins to worry about his large Ball bearings.

Id rather cut off My own Ball bearings than visit the doctor.

Hide the Ball Bearings 

A business consulting insider term that indicates purposefully hiding the truth by omitting an essential detail. Often used to buy time for negotiations or deeper research.

It's funny because the word ball is in it.
"You didn't bother telling Ewan you're already seeing someone?"
"Nah, I'm going to hide the ball bearings. What if Ewan's got a bigger dick? Gotta do the research before I close the deal."

Ball bearing mousetrap 

A tomcat.....think about it.
This is an old slang term for an unaltered male cat
I had a bit of a rodent problem in my kitchen so I went down to the pound and got a ball bearing mousetrap.
Ball bearing mousetrap by Pogo56 April 26, 2009

rusty ball bearing 

A testicle with traces of fecal matter present.
That girl I was getting balls deep in sharted, gave me a rusty ball bearing
rusty ball bearing by Nefurious December 9, 2016

Ball bearing jackass 

Another term for a motorcycle. Mainly a blue collar and or redneck term, although the two are not synonymous. You will hear this term most often said in regard to a chopper or bobber.
Clint: Hey man, gonna ride the ball bearing jackass to school today?

Ed: Nah, that'd be a death wish today with how slick the roads are.
More from Urban Dictionary
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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