Each of the two large fleshy halves of the posterior part of the body between the base of the back and the top of the legs. (noun)
The convexity of a ship behind, under the stern. (noun)
Examples of word buttock
Subject received a flesh wound in the right buttock from the machine gun fire that destroyed the LOH.
I swung around for the spot and yanked my sweaty map out from under my left buttock, which is still the best map holder ever devised for a fighter plane, and prepared to get some good coordinates for the rescue guys.
The hip-bone, (Os ischium) lies directly under the flank bone, (Os ilium) and is the lowest point of the basin, or pelvis, vulgarly called the buttock, being the point on which we sit.
Ely believes the value of the metal in the buttock is the real issue for Iraq officials: Â£250,000.
We must, however, interpret in greater detail; the Rotunda is the buttock which is regularly associated by the child with the genital, the smaller front structure is the scrotum.