Word.ws English Dictionary

knee-slapper

knee-slapper noun: a joke, especially one which strikes the listener or reader as particularly humorous.

Noun

knee-slapper (plural knee-slappers)

  1. (humorous, idiomatic, sarcastic, usually) A joke, especially one which strikes the listener or reader as particularly humorous.
    Synonyms:
    thigh-slapper
    Antonyms:
    groaner

Synonyms of knee-slapper

Antonyms

Forms of knee-slapper

pluralknee-slappers
alternative formknee slapper

Questions about knee-slapper

What does knee-slapper mean?
Knee-slapper means a joke, especially one which strikes the listener or reader as particularly humorous.
What part of speech is knee-slapper?
Knee-slapper is a noun.
What is the plural of knee-slapper?
The plural of knee-slapper is knee-slappers.

Words near knee-slapper in the dictionary

  1. knee-paddle
  2. knee-paddled
  3. knee-paddles
  4. knee-paddling
  5. knee-pads
  6. knee-slapper
  7. knee-slappers
  8. knee-slapping
  9. knee-tremble
  10. knee-trembler
  11. knee-tremblers

Source and license

Adapted from Wiktionary: knee-slapper (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: En-au-knee slapper.ogg.

Cite this entry: “knee-slapper.” Word.ws, https://word.ws/knee-slapper. Based on Wiktionary, CC BY-SA 4.0.