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The theory of the circulation of heat. This theory states that if you have a heater and the fans on at the same time, the heat will be circulated throughout the room. This theory was proposed and proven correct by Spencer ‘spastic’ Smith.
Aye homie is it hot in here because of the jis theory or is it just cause you pounding my ass.
jis by isaaccoochie May 19, 2021
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Jis is very good looking
Jis by seskiboy123524 November 18, 2021
Related Words
jism • Jismslap • jisung • Jisoo • jish • Jishnu • jiss • Jiselle • jisus • Jisan
Popular Indian given name, short for Jistopher. Sometimes goes by J. A true patriot and warrior despite always being carried on apex. Not afraid of anything except swimming in water because it would ruin his luxurious hair. Will probably steal your girl if he doesn’t steal you first.

Not to be confused for jizz.
Person 1: Who’s that handsome Indian man?
Person 2: I don’t know but he makes me want to Jis in my pants
Jis by Princeofpersiaf April 13, 2022

JIS UNITED

A discord server for JIS Middle Schoolers. It's super active but has super crazy chat too. And there's a long ban list.
Man, I got banned from JIS UNITED again!
JIS UNITED by Breadcat March 7, 2021
The word jis jan Literally means riding plate, but it is made into a meme by Zin 2 BC Zin who is a law breaker.

So, jis jan is a meme that means riding something going somewhere but in a meme way.
ZinII: hey lets hangout!
BcZin: ride what?
ZinII: ejui jis jan moa.

Translated by: fantastic fart
Jis jan by Fantastic fart November 11, 2019
Regularly defines a spoiled rich kid who gets whatever he or she wants, normally likes to flex what their parent have bought them or their useless skills, they also like to start unneeded drama every year so they can feel better about their own problems.
Jis Kid 1: hey what time is it?
Jis Kid 2: I don’t know let me pull out my iPhone 13 pro max to check, oh dang, it’s dead, let me check my Apple Watch, dang, that’s dead too, anyway, do you wanna go spread some rumors?
Jis Kid 1: you read my mind!
jis kid by John_69 August 20, 2022

JIS (jeddah international school) 

The most helling school in Jeddah ever as soon as you see ms Mona’s face ur gunna get a nightmare about 3 dyslexic men molesting you in the sad excuse of a school library. How can a school be so gay yet so homophobic at the same time? The bathroom stalls are so tiny to the point where when ur tryna go into a stall you feel like a jiafei meme walking through a small alley. it also smells like tropical ice cream watermelon because of the amount of 7th graders tryna vape in the stalls. Don’t ever go to JIS and if you’re already there, get out before it’s too late and you’re set to fail for life.
JIS (Jeddah international school) is supplying the future generation of jeddawis.
More from Urban Dictionary
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
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