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1.
to be posted on yo set or turf and protect it or sell drugs on it
i was walkin down the street and i saw two people wearing all red sellin drugs(gang banging
by Marcus Lorenzo Taylor May 26, 2006
 
2.
A Gang Member Who Puts In Work For His Gang Such As Killing ,Drive By's, Shooting At Rivals.

There is a difference between claiming your a gangster and GangBanging.
Chicano : That Foo Claims He's A Gangster But He Don't Gang Bang!

Wanna Be's Claim There This And That But Don't Really Be Out There Gang Banging!!
by CHICANO PRIDE August 19, 2010