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This came about due to a famous tennis coach by the name of Carlos Casely who hosts Tennis Camps for kids for summer vacation. After all the kids are registered for camp, the camp suddenly gets canceled right before it starts because of some unforeseen circumstance and Mr. Casely runs away with all of the money.

So if someone you know collects money for some cause or event and does not follow through and keeps the money...they just pulled a Casely.
"Don't pull a Casely".
Casely by Casely May 28, 2014
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caseytown 

The place you go when you get blackout drunk. Like, seriously fucked up.
I'm definitely headed for caseytown tonight, I took 8 shots of tequila in two minutes.
caseytown by mayor of caseytown December 15, 2011
Related Words

Casey Heynes 

the act of a victim finally standing up/defending oneself from a bully with explosive force after enduring the bully's torment for far too long. This counter-attack/self-defence, is against the victim's normal behaviour, and hence takes the bully by complete surprise.
He had been bullied all his life, but finally snapped and Casey Heynes'd his tormentor straight into the pavement!
Casey Heynes by mrshr3d April 3, 2011

CaseyBoguski 

A rich white kid, still sucks his mothers tit, and acts like he can get the bitches.
"Look over there. CaseyBoguski is such a douche. "
CaseyBoguski by Sweg717 January 20, 2015

Casey Heynes 

The man, the Legend, the face of Anti-Bullying, the Zangief Kid, Mr. "I must break you", Wont like him when hes angry- Casey Heynes. The internet phenom that is known for very aggressively shutting his 82 lbs. bully up by lifting him up and slamming his shit on the concrete during school in Australia. YouTube is trying 120% to remove these videos off of their website, but its too good. The video has been edited to Street Fighter formats and other video game references. Within a week of its release, an animated version was made.
Casey Heynes is the best at what he does.
Casey Heynes by MrDeezul April 3, 2011

Angry Casey 

When you are doing your girl from behind and you yell FUCK YOU, I'M A MANDALORIAN, throw her into on coming traffic and then go to Costco
I was banging my girl and she got attitude with me so I pulled an Angry Casey
Angry Casey by Casey21 January 5, 2018

Casey Gardner 

The best character from Atypical and the queer icon we all need. Probably punching her brother or making out with Izzie, she's a real rollercoaster. All lesbians who've seen the show thinks she's hot.
"I am going to sit on you like an egg... Tweep tweep!" - Casey Gardner
Casey Gardner by demon debbie September 12, 2020
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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