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Hardcastle

The act of ejaculating on a person who is either sleeping or unconscious.
As retribution for making him feel awkward earlier at the beach, Joel hardcastled Samantha as she slept on the couch.
Hardcastle by hardcastlingzach March 1, 2009

hardcase 

describes someone who is tough/hard and is probably rumoured to have stabbed someone
(liverpool slang)
"she's such a hardcase"
"nah he's a proper hardcase"
hardcase by L25imm May 28, 2017

Hard Cap 

The hard cap would be the absolute maximum level you can achieve, but usually has diminished returns and is not worth pursuing. The soft cap is often referred to as the level you can get to easily, or throughout the natural progression of an rpg style game. You can usually beat the game by achieving the soft cap level. Elder Scroll games are probably a good example of this.
What level is the hard cap in Skyrim?
Hard Cap by bostoncasey December 16, 2014

Hard Cap 

When a male awakes the morning after having sexual intercourse, also known as copulation or coitus, goes to urinate and finds a hard cap of female ejaculation incasing the head of his penis.
Stinky woke up Sunday morning with a really bad hard cap, he told me.
Hard Cap by Stinky Hard Cap January 18, 2009

hardcase 

British slang for an underworld enforcer.
"You're the fucking hardcase get the fucking guns"

-Lock Stock and 2 Smoking Barrels
hardcase by Chimpy6 January 31, 2005
an small annoying child that does not experience pain to the scrotum
Andrew MacDonald Hardcakes
hardcakes by Caldervale Hs January 15, 2010
More from Urban Dictionary

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
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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