perp-beater Share definition Flag A rugged flashlight with the dimensions of a billy club, especially a model carried by the police. "I'm mall night security; all I get to carry is a perp-beater and a radio!" perp-beater by Bezzle December 18, 2014 0 0 Get merch Get the perp-beater mug. Buy Now — $32.95 See more merch