ポリ公こうポリこうMeanings1nouncop; pig; police officerslangderogatoryDerogatory slang term for a police officer, similar to 'cop' or 'pig' in English. Used in casual, often hostile contexts.あのポリ公こう、また張はってるよ。That cop is staking out again.ポリ公こうに目めをつけられた。I got on the wrong side of the cops.