WordReference Random House Unabridged Dictionary of American English © 2026
keis•ter
(kē′stər),USA pronunciation n. [Slang.]
- Slang Termsthe buttocks;
rump.
- 1880–85; earlier, as underworld argot, handbag, suitcase, safe; of obscure origin, originally, but words meaning "chest, box'' are frequently adduced as sources, e.g., kist1, German Kiste, Yiddish kestl, etc.
'keister' also found in these entries (note: many are not synonyms or translations):