Definition of thigh-slapper in English:

thigh-slapper

noun

informal
  • A joke or anecdote considered to be exceptionally funny.

    • ‘Some tasks are never going to be thigh-slappers no matter how long they marinate on your desk.’
    • ‘The real thigh-slapper is Ms. Henry's insistence that amateurism is ‘the principle’ that ‘separates’ college from pro sports.’
    funny story, jest, witticism, quip, pleasantry
    View synonyms

Pronunciation

thigh-slapper

/ˈTHīslapər/