Short for Jurassic 5, a rap group that emerged in the late 90s.
When syllables slide you'll be enjoyin the vibe;
When consider it pride, it's J5;
by KidNapster June 6, 2005
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When someone is said to be J5, he/she has the ability to turn worst of haters into best of fans.

Coined after the legendary midfielder who has a track record of playing so well that his haters turn into fans.
"Damn man the guy that ranted about him was found praising him a month later, this guy is such a J5"
by EpitomeOfBallKnowledge July 16, 2021
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J5 is the Founder’s Day for the greatest fraternity in the world, Kappa Alpha Psi Fraternity Incorporated founded Thursday, January 5th, 1911. Also known as your girl favorite holiday. If your girl going out on J5, just know She Wit Da Nupes Now!
Random girl: You going to the J5 party?
Her: J5? Girl, you know I love the Nupes! I’m going
by Advokate1 December 20, 2022
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