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Onioning 

when a guy is dancing behind an unknown girl , for example in a crowded disco or pub , and He is trying to put his pelvis as close,of the girl's bottom as, he can, following the rhythm of music while He is faking to dance.
Girl: She was onioning so hard on my ass last night! I thought it was gonna go numb!!
Onioning by SpanishUrbanBoy September 19, 2016

Devil's Onionring 

Your asshole.
Take a shower nozzle, turn it to jet, and give your devil's onionring a blast from the past!
Devil's Onionring by [sT]Crew March 23, 2004

Onioning 

When you shoplift from the supermarket by scanning items through the self-service till as an onion (the lowest price item).
In a shameful display of self destruction, depression and sickening greed (potentially malice), pitiful celebrity TV 'chef' Anthony 'The Abhorrent' Worrell Thompson was caught literally red handed onioning a bottle of red wine and some camembert. His family are dutifully shocked.
Onioning by jamejame January 21, 2012

Onioning 

To make a promise to do something and then refuse out of a claim of complications or disagreement that never happens.
"He's not onioning his way out of the interview."
Onioning by NatrixMonster March 31, 2020
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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