cop on /kɒp ɒn/verb 2noun 1forms 3 verb2 •(Ireland, informal) To stop behaving immaturely; behave, grow up.You'll get in trouble with the boss if you don't cop on. •(dialect, informal) To come to understand; twig, cotton on. noun1 •(Ireland, informal) Common sense.That eejit has no cop on. formscopped on · copping on · cops on
