1) A term used for mocking people, usually caucasian, who truly believe they are in fact, black. And therefore believe they can go around walking, talking and dressing like 50 cent.
Formally known as White Trash.
2) A word sarcastically used for greeting friends.
1) Me: "Oh shit, here comes 'G-bounce'"
*White POS Caddy pulls up with $100 system, bumping Tupac*
*19 y-o, 'G-Bounce' gets out grabbing his mathematics 10 books, and enters the school with his signature swagger*
2) "Whatup G-Bounce"