1. Someone who is generally whack, pathetic
2. A cowardly man
3. A man you see with an attractive woman which you've decided he doesn't deserve, based on no information at all
A poor, innocent crash-test dummy. He has done not a thing to deserve the torment regularly inflicted upon him by Adam and Jamie, those cruel bastards, on the TV show Mythbusters.
Perosn 1: Hey wey...what up?
Person 2: Not much. Bored as hell!
Person 1: Did you hear about lil' G?
Person 2: No...what?
Person 1: The OG said he was a buster and he got his ass beat last night!!