1. n. a police officer. (Derogatory. From cockroach.) A roach caught him while he was at work.
2. n. the butt end of a marijuana cigarette. (Drugs.) The cops found a roach on the bathroom floor.
3. n. an ugly girl or woman. (Derogatory. From cockroach.) Who was that roach you were with last night?
roach clip
and roach pick
n. a device to hold a roach and make it smokable. (Drugs.) When the cops find a roach clip on you, you’ve had it. He held the roach on a paper clip “roach pick.”