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Potato Cannon 

About 20 dollars of PVC and a grill ignitor put together to launch a potato at high speeds in excess of 300 feet. Sounds like a gunshot. Typicly made by bored, immature teenagers, but is incredibly fun to create/play with. If you shoot a potato it'll scare the shit out of everyone within 500 feet of you.
Last friday night some nerdy freshmen made a potato cannon and shot my front door. I then went outside and ran them over in my ford bronco.
Potato Cannon by ThE GaMe!!! July 16, 2009

potato cannon 

A helpful utensil used for blowing holes in stuff, yeeting siblings OOOUUUUUUUT OOOOOFF YYEEEEEERR LIIIFE... get Rek-t sibling...
SHUT UP BEFORE I SHOOT U WITH ME POTATO CANNON.
potato cannon by The Rek-r November 21, 2019

potato cannon 

Any sort of device that looks like a cannon and is generally designed to shoot potatos at a high velocity using household products as propellent. Also known as spud gun and potato launcher.
Using these lengths of PVC pipe, I intend to constuct a brand new potato cannon that will surely attract every twelve-year-old in the nieghborhood.
potato cannon by Kurt Padilla July 12, 2004

Potato cannon

When you’ve been holding on to farts for a while and you go to the toilet and the compressed gas causes a firm poo to shoot out with an almighty foonk.
Describe your last bowel movement in two words?

Potato cannon
Potato cannon by Deuce Bigaflow January 7, 2026
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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