Definition of tomfool in English:

tomfool

noun

dated
  • A foolish person.

    as modifier ‘she was destined to take part in some tomfool caper’
    • ‘Craning his neck like some tomfool who doesn't know quite what he's doing, he denies, even as he asserts, his mastery of the psychological dynamics of his art.’
    • ‘Within minutes we were grinning like tomfools.’

Pronunciation

tomfool

/tɒmˈfuːl/