J-Back

A person who lays their head upon another's shoulders a bit too much, and uses the word Bitch unnecessarily

Guy 1: Dude did that guy just lay his head on your shoulder?
Guy 2: Yeah he's a real J-Back

J-Capp Back On The Track

if somebody says this, your about to get slapped physically, or its before someone named J-Capp starts to rap

"J-Capp Back On The Track!!!" *slaps*
or
J-Capp back on the track, yh. *raps*

J-back

A term used to describe a flat-assed female. Usually promiscious, trashy, loud, annoying and obnoxious.

-Ugh! Man did you see that chick?
-Yeah she's a real J-back..