Definition of look (or feel)(like) a million dollars in US English:

look (or feel)(like) a million dollars

phrase

informal
  • (of a person) look or feel extremely good.

    • ‘Why bother, when Milan will always end up leaving you looking like a million dollars?’
    • ‘The house will look like a million dollars when it's all done.’
    • ‘I felt I looked a million dollars - for the first and last time.’
    • ‘I feel like a million dollars as we cruise towards Manhattan.’
    • ‘This involves sometimes dressing up to the nines, doing grand things and looking like a million dollars.’
    • ‘And the glorious alpine summer weather will make you feel like a million dollars.’
    • ‘He made you feel like a million dollars when you were with him.’
    • ‘However, it was great to have her present and looking a million dollars.’
    • ‘This was all built on a Mac, naturally, and it looks like a million dollars in Safari.’
    • ‘But I made you feel like a million dollars, didn't I?’