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Rusty Car in the Rain 

A dirty sex act with Norm Macdonald, as per Comedians in Cars Getting Coffee.
"How much for a rusty car in the rain?"
Rusty Car in the Rain by ringbell January 2, 2019

Rusty Carrot 

Giving a man analingus (rimming/ salad tossing/ ass licking) while reaching around his front and gently tapping his testicles together like they are in Newton’s Cradle. The hand motion has likeness to a Carrot In A Breeze. So similar to a Rusty Trombone yet with more sentiment to the global dance sensation.

It grew as a spin off from the Carrot In A Breeze dance craze during after parties in Auckland New Zealand. Since it has been spreading globally recently joining the offerings from Lady-Boys in Bangkok, Thailand. It has also been reported as a fraternity initiation act at a well known US College.
1. Barby gave me the Rusty Carrot last night, man her tongue and tap are the best… 2. Check her out, she can Rusty Carrot me any day!
Rusty Carrot by Marg Fulton November 6, 2013

rusty caribou 

When someone shits, doesn’t wipe, and then you eat their ass
rusty caribou by Rustybou January 13, 2018

Rusty Carl 

The combination of a Hot Carl and a Rusty Trombone. also there's a spit valve involved.
this sicko on on the internet was interested in a rusty carl.

A RUSTY CARL

When some one shits inside a car hood so that shit can later be smelled through the inside vents
Did you really just do A RUSTY CARL to the Toyota Prius.
A RUSTY CARL by Mikechi October 22, 2010

rusty carrots 

See also bowel carrots.

Basically the same thing, but describes the turd(s) after it passed into a second environment e.g. bog, public bin, tesco bag, bush etc.

Can be associated with human or animals.
I was walking the dog in the park one day when I came across a group of rusty carrots. Once I trod on one of them, breaking the skin, I began to realise these fellas were delivered by no human!
rusty carrots by vindows wertex September 30, 2007
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
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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