Definition of in all one's puff in English:

in all one's puff

phrase

British
informal
  • In one's whole life.

    ‘did you ever see anything more pretentious in all your puff?’
    • ‘Said fitter is shaven-headed and short, sporting, for reasons best known to his girlfriend, serpent tattoos writhing down not one but both arms, but I have never in all my puff seen a dreamier-looking man.’
    • ‘This has got to be one of the daftest ‘scientific’ studies I've ever come across in all my puff.’
    • ‘One week before the exam, you tell the pupil that never, in all your puff, have you ever heard such a lovely sound.’