knee–slapper

play
noun knee–slap·per \ˈnē-ˌsla-pər\

Definition of knee–slapper

  1. :  an extremely funny joke, line, or story

First Known Use of knee–slapper

1966


KNEE–SLAPPER Defined for English Language Learners

knee-slapper

play
noun

Definition of knee–slapper for English Language Learners

  • : a very funny joke or story

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