Definition of pi-jaw in English:

pi-jaw

noun

informal, dated
  • [mass noun] Tediously moralizing talk.

    • ‘Oh, what pi-jaw, Bunty.’
    • ‘‘Pi-jaw’—that was the word they used at Netherton for interviews with the head master.’
    • ‘It's a light fantasy piece about a dad dragon giving a pi-jaw to his dragon son, and I just can't seem to settle it anywhere.’

Pronunciation:

pi-jaw

/ˈpʌɪdʒɔː/