Definitions by Co Iowa

Shooting Jiggers 

Alerting other inmates an officer is coming down range in a correctional setting usually by yelling "WHOOP WHOOP" like a police siren.

Inmate: WHOOP WHOOP!
C.O.: Why are you shooting jiggers? Your buddies packing each other's shit?

Shooting Jiggers by Co Iowa May 1, 2014