When it comes to the charms of the fairer sex, I'm the kind of guy who delights in all manifestations of the dorsal-rondure muse. “Callipygous!” I exult, should any such specimen grace me. “A lovely little bit o’ stuff!” The rococo rhetoric elicits inevitable queries. “Loving hindsight,” I reply.

callipygous
PRONUNCIATION:
(kal-uh-PY-guhs)

MEANING:
adjective: Having well-shaped buttocks.

ETYMOLOGY:
From Greek calli- (beautiful) + pyge (buttocks). Earliest documented use: 1923. Another form of this word is callipygian. Two related words are dasypygal and steatopygia.

USAGE:
"The boys knew that if they could remember the details of their school work only half as vividly as they recalled every detail of the callipygous Kathy, they would all be eligible for full college scholarships."
John H. Steinemann; Handstand; Askmar; 2010.

"'Pick me,' Aphrodite says, arching her back and turning slightly to present to him under her robe a callipygous formation more perfect than ever he has seen."
Joseph Heller; Portrait of an Artist, as an Old Man; Simon & Schuster; 2000.