Definition of stush in English:

stush

(also stoosh)

adjective

informal
  • Smart, wealthy, or snobbish.

    ‘the stush journalists in attendance failed to understand the ghetto humour’
    • ‘I can't help it, every time I get approached now I'm really off-key and give off the impression that I'm stush or something.’
    • ‘Sounds like a stoosh word for geek to me.’
    • ‘We're aware that the fans adore him, but what about the notoriously stush English clubbers?’
    • ‘Sounds stush and self-indulgent, but it really isn't.’
    • ‘The place is by no means stoosh, but it's no ghetto either.’

Origin

1980s (originally in West Indian English): perhaps a corruption of ostentatious.

Pronunciation

stush

/stʊʃ/