Definition of stop-out in English:

stop-out

noun

British
informal
  • A person who stays out late at night.

    ‘wild stop-outs who put their lenses in wine glasses wake up to find they have been swallowed’
    ‘you are turning me into a dirty stop-out’
    • ‘So just now, while waiting for the dirty stop-outs, I was tidying up the kitchen so figured I'd listen to a podcast.’
    • ‘She is undoubtedly a dirty stop-out and would provide generous assistance should I chance upon a bar in serious need of propping up.’