Definition of put on the dog in US English:

put on the dog

phrase

North American
informal
  • Behave in a pretentious or ostentatious way.

    ‘we have to put on the dog for Anne Marie’
    • ‘Because the companies usually have inked deals before the show with key licensees, why drag the whole staff and put on the dog for three dizzying days?’
    • ‘Al, with his short curly hair greased back, was putting on the dog and crooning a ballad into a microphone.’
    • ‘I suppose I should have worked harder to raise money and put on the dog a little more, but the truth is, I was having too much fun and didn't want to take the time.’
    • ‘The CEO put on the dog today as he welcomed customers to the enterprise software company's annual users' conference.’