A gang fight.
Protecting gang turf, especially when dealing drugs or other black market objects.
An orgy, especially a sexual one.
A criminal gang.
A group or company of people, originally especially one having hostile intent; a throng, a crowd.
A group of people summoned to help law enforcement.
A search party.
A group of (especially young) people seen as constituting a peer group or band of associates; a gang, a group of friends.