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Filarious 

when something is fucking hilarious
Alize: Omg did you see Morné's hair today ?
Sonia : Hell yeah, that's Filarious
Filarious by AAAlex April 10, 2013

Felonious Spunk

Sexual assault committed while jazz music is playing.
He prefers modal jazz when inflicting his Felonious Spunk.

Felonious Thelonius 

A nickname given to the great jazz pianist Thelonius Monk due to the friendships he had with cultural rabble rousers like Allen Ginsberg and Timothy Leary.
We love the freedom we feel when Felonious Thelonius sets us on fire!

felonious 

"Felony" like. Up to no good.
Any activity you could probably catch a felony by participating in.
1."What's that guy doing behind that building?"

"I don't know, but it looks pretty FELONIOUS."

2."She's the biggest troublemaker I know, totally FELONIOUS."
felonious by Bonnie Kate March 11, 2010

Felonious fart 

A silent air biscuit so vile and disgusting that the perpetrator should do time for such an assault.
Carl made the crowd scatter following his felonious fart attack.felony fart

Filarious 

1) Fucking + Hilarious = Filarious
2) Funny + Hilarious = Filarious
"Did you see that fat kid fall?"
"Hells yeah! That shit was filarious!"
Filarious by BMAR May 30, 2006
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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