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Historism 

Word used mostly by Roleplayerss, might have also been used by Xerxes in 300 (not confirmed.)
Blue ass: "You gotta shut up honestly."
LadyZenith: "I'LL MAKE YOU DEATH AND SEND YOU INTO THE HISTORISM!!"
Historism by RyuSensei April 26, 2008
-the state of being in awe of an hilarious act or happening.
Rebecca: Cindy, is a snob and a 1/2. Good thing she's gorgeous enough to get away with all of her dirt!

Rodney: You mean used to be.

Rebecca: Used to be?

Rodney: Yea. You didn't hear what happened? So, Cindy fell down the stairs broke three teeth and four vertebrae? Yikes.

Rebecca: Muahahaha. I can't stop laughing!!! Its hilarious!!!! I'm in a state of HILARIUM!!!
Hilarium by Gorgeous Melanin February 18, 2011

historiuh 

a tiktoker who is funny and hot asf

posts about anime and aot
Person 1: "Do you follow @historiuh on tiktok?"
Person 2: "No I don't"
Person 1: *Gouges Person 2's eyes out with a spoon*
historiuh by ur mom😩 February 22, 2021
something that is extremly funny
yo, guy that's hilarium!!
hilarium by nerds June 24, 2003

hilarium aquarium 

An adjective defining an instance where something is so funny it needs a rhyming catch phrase.
"Hey did you see that new movie? That shit was hilarium aquarium." "Did you see when that girl tripped while wearing those tall stilettos? Yeah bro, totally hilarium aquarium"
a "HILARIUM" is a word to describe the space and time within which hilarious shit reveals itself.
The point in Dave Chappelle's "Black White-Supremasist" skit, when his character Clayton Bigsby removes his hood, and the dude in the back row...his head literally explodes...then Clayton offers everyone refershments....that is the absolute HILARIUM of life.
Hilarium by Tehn Diamond August 23, 2010
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
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
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