1) noun. Means Korean-Nigger. Korean who acts black, listens to rap/hiphop and etc. Dresses accordingly to the hiphop black culture.
2) Korean Gangstah.
"Bettah not fuk wit us kiggas"
Means #1 in Korean. Zzang can also mean the leader of a crew, or a good fighter with skillz.
Shit. did you see how he kicked the shit out of all 5 white boys? He's ZZANG."
Means a gangster in Korean. Same as Jopok, but less formal.
Better not fuk wit him. He's a gundal.