Definition of in with in English:

in with

phrase

informal
  • On friendly terms with.

    ‘the Krays were in with a couple of MPs’
    • ‘He claimed to be so well in with the prime minister that he and his wife had been invited to Chequers.’
    • ‘He mentioned that he was well in with the warder.’
    • ‘In his opinion, if you were in with that crowd, then you were too far gone for saving.’
    • ‘She was led astray by her desire to be in with the young … and to distance herself from old politicians.’
    in favour, popular, friendly, friends
    View synonyms