Knees-up

noun, slang

noun, slang ·Uncommon ·College level

Definitions

Noun
  1. 1
    A party. British, informal

    "Let's have a bit of a knees-up, Arp."

Synonyms

All synonyms
doparty

Example

More examples

"Let's have a bit of a knees-up, Arp."

Etymology

UK 20th century. From the song "Knees Up Mother Brown" (from at least 1918; published 1938). Suggesting the motions of dancing.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.