5-0: Police 13: Same as SUR 187: Murder (California penal code) 911: Police ACE KOOL: Best friend/Backup A.K.: AK-47 rifle AK/UZI: Semi-auto weapon ALL THAT: In possession of all good qualities. A.R.: AR15 rifle AY YO TRIP: Phrase to seek attention, compare check this out. BAG UP: To laugh real hard at something; To be caught or arrested by the police. BANG: To fight to kill. BANGER: Someone associated with gangs and murder. BANGIN