coppish UK /ˈkɒpɪʃ/US /ˈkɑpɪʃ/adjective 1noun 1forms 3 adjective1 •(US, slang) Characteristic of or resembling a cop (“police officer”).“Are you a policeman?” Conroy said. I gave him my most coppish deadpan stare. — 2002 noun1 •(Wales) The fly of a pair of trousers. formscoppishes · more coppish · most coppish