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knees-up

(British, informal) A party.

ˈnipsDocumented since 1910s1910sSilenthistorical56 viewsLast reviewed Jun 29, 2026+ Add a definition
🇬🇧 British & Irish slang
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Born ~1918 · no dated citations yet
1918BornToday, 2026

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UK
#1·Apr 27, 2026UK

(British, informal) A party.

Origin: UK 20th century. From the song "Knees Up Mother Brown" (from at least 1918; published 1938). Suggesting the motions of dancing. Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).
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UK and Irish slang — Cockney, Scouse, Geordie, Yorkshire, Glaswegian, Brummie, Welsh, West Country, plus Irish English. Centuries of regional dialects feeding into modern British and Irish street talk.

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