cop oneself on

== English == === Pronunciation === Rhymes: -ɒn === Verb === cop oneself on (third-person singular simple present cops oneself on, present participle copping oneself on, simple past and past participle copped oneself on) (Ireland, informal, idiomatic) to cop on, stop behaving immaturely 2016 January 13, Robert Mulhern, "British Army GAA team debate: ‘Croke Park have more or less told London to cop themselves on’ Cork Examiner