JB 

Jail Bait. A girl or boy who is underage.

Back off dude. She's JB.

JB by Lauren Gio December 28, 2005

JB 

Anyone with the initials "JB" are instantly cool. If they happen to have a fancy name all the better. Examples include James Bond, Jack Black, Occasionally Justin Bieber etc. These people are usually held in high regard, as the superior initials for nicknames over others such as a TJ or PJ. These are people you want to know.

Oh wow he really is the real JB.

JB by walker nexus 3 October 7, 2019

JB 

an acronym for the phrase Jiant Bitch

Your such a Jb

JB by darkmegastorm May 20, 2014

jb 

1) Short for jail bait.
2) A person who is almost, yet barely the age of consent.
3) Pornography which usually features girls 13-17 taking pictures of themselves naked in front of mirrors.
4) Not to be confused with cp.

"I fapped to some jb on the net. Little did I know it was my little sister."

jb by "A" June 15, 2008

JB 

A person you can count on and a person you can tell anything and he has some swag and he is hella fine

Yo man that boy right there i know him his name JB damn he got some swag look at him.

JB by Chu-chu-tang May 4, 2018

Jb 

A Jb is a guy that is funny and clearly we can say it very hot as fuck, you can say he is a good guy with a good intelligence, even if he could be the best crush ever he should look in his friends cause it's sure one of them like him...

Friend : your a jerk
Jb : fuck you
Friend: " why isn't him giving me any attention "

Jb by caroot May 29, 2020

JB 

A dirty whore who thinks she is entitled unconditional love, even when she fucks ur friends and will stalk you for ur attention by getting you fired and fucking ur friends, and by trying to get her whore friends to fuck you as well.

Hey u still talking to that girl
Me: oh u mean JB, naw she got buthurt because I don't wanna date a girl who be fucking everyone.
Friend: well she must be lonely and miserable
Me: naw she doing great, she's been happily in a relationship for the last 6 years with 25 different guys and is usually single for about negative two days in-between her victims

JB by Noteatsmggeets December 5, 2016