keister

or kees·ter

[kee-ster]

See more synonyms for keister on Thesaurus.com

noun Slang.

the buttocks; rump.

Origin of keister

1880–85; earlier, as underworld argot, handbag, suitcase, safe; of obscure origin, but words meaning “chest, box” are frequently adduced as sources, e.g., kist¹, German Kiste, Yiddish kestl, etc.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for keister

bottom, derriere, behind, tush, rump, fanny

Examples from the Web for keister

Contemporary Examples of keister

Zafu Via huggermugger These delightful Japanese meditation pillows are great from when you want to rest your keister.
Work Like Churchill-Ditch Your Office Chair and Embrace the Standing Desk
Gregory Ferenstein
June 2, 2014

Historical Examples of keister

Now, Tuttle, set down that there keister of yours—that gripsack—and listen.
Local Color
Irvin S. Cobb

British Dictionary definitions for keister

keister

keester

noun slang, mainly US

the rump; buttocks
a suitcase, trunk, or box

Word Origin for keister

C20: of uncertain origin

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for keister

"buttocks," 1931, perhaps transferred from underworld meaning "safe, strongbox" (1914), earlier "a burglar's toolkit that can be locked" (1881); probably from British dialect kist (northern form of chest) or its German cognate Kiste "chest, box." The connection may be via pickpocket slang sense of "rear trouser pocket" (1930s).