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1.
J5
J5 also is a shorter way to call someone a Junkie. because there is the J, and the 5 is for the remaining letters of the word Junkie.
naw nigga, I aint got no crack! Now ride out J5 before i push your shit in!
by BGets March 04, 2010
 
2.
J5
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 06, 2005