(informal) A policeman driving a motorcycle.

(rare, dated) To take the biscuit; to top everything else.

(US, slang) A police officer who patrols the streets on foot (walks the beat)

(informal) A suicide in which a person points a firearm at an armed police officer to provoke them to shoot.

Synonym of suicide by cop / Used other than figuratively or idiomatically: see death, by, cop.

plural of cop-out

(colloquial, derogatory) A private security guard, usually one regarded as inferior to and less skilled than a true law enforcement officer.

(intransitive, slang) to leave school early

(idiomatic) To avoid or shirk, either by failing to perform, or by performing in a grossly insufficient, negligent, or superficial manner. / To plead guilty and ask for mercy.

(informal, intransitive) To stealthily fondle someone in a sexual manner.