jump-out gang
n.— «Miami police could point with pride to the success of their undercover anti-drug team. Its 15-member squad, dubbed the “Jump Out Gang” for the way officers sprang at unsuspecting criminals, helped account for roughly 6,000 drug-related arrests since 1986.» —“Death puts heat on tough cops in a rough city” by Jeffrey Good St. Petersburg Times Dec. 23, 1988. (source: Double-Tongued Dictionary)