the buttocks.
the anus.
a base or basic principle; underlying part; foundation.

1250–1300; < Latin fundāmentum foundation; replacing Middle English fondement < Old French. See found2, -ment Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To fundament
World English Dictionary
fundament (ˈfʌndəmənt)
1.  euphemistic, facetious or the buttocks
2.  the natural features of the earth's surface, unaltered by man
3.  a base or foundation, esp of a building
4.  a theory, principle, or underlying basis
[C13: from Latin fundāmentum foundation, from fundāre to found²]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

c.1300, "buttocks, anus," from L. fundamentum, from fundare "to found" (see found (1)). So called because it is where one sits.
"Alle þe filþ of his magh ['maw'] salle breste out atte his fondament for drede." ["Cursor Mundi," c.1340]
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

fundament fun·da·ment (fŭn'də-mənt)
See anus.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Example sentences
All other announcements are a pain in the fundament.
Lying: it's the fundament of all fiction--and what comedians, those unbeautiful
  little people, do to get attention.
It wasn't only a matter of embodying a nation, though that was the fundament of
  the electoral arrangement.
There is too much focus on useful hints but with little or no theoretical
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature