Definition of cop on in English:

cop on

phrasal verb

Irish
informal
  • 1Become aware of something.

    ‘she never copped on—you've no idea of the guilt I went through’
    • ‘It also copped on to the fact that real global power is measured by how far you can project that power.’
    • ‘The bad news for him is that others have copped on to his game.’
    • ‘Eventually the Romans copped on to the unifying power of currency and circulated their coins widely throughout the empire.’
    • ‘‘I didn't think he was serious at first, but then I copped on I said I'd let him sweat it out for a minute,’ the thrilled bride-to-be joked afterwards.’
    • ‘‘There has been a rise in applications because parents are copping on that without them pushing for the help their children need, nobody will look out for them,’ she said.’
    1. 1.1as imperative Used as a way of telling someone not to be so stupid.
      ‘ah, cop on, I was only messin'’