look up any word, like blumpkin:
1. A source of ignition for a joint.

2. A weaker, somewhat pathetic joint or any such cheap imitation.
1. Yo duke pass dat J Light befo' I Polynesian handshake up in here.

2. That muscular post-op tranny is like a J Light: looks like a man but in fact has an inverted-ball-sack-vagina.
by sirrix November 10, 2010