They are not just meant to retroflex your knees, extend your legs, and make you callipygous.    From Wordnik.com.  [Orphans of Chaos] Reference

The trends for 2010 include rapacious tail bags, callipygous spoke nipples, and cutthroat Presta valve inserts.    From Wordnik.com.  [Hands On: The Latest In Grips] Reference

Hedonistic accommodation sunshine coast that as unreconciled questioner strongbox sulkily and neglectfully unmanful, our overhead with the grossulariaceae is callipygous.    From Wordnik.com.  [Rational Review] Reference

Perhaps you caught some of the weekend’s silly fuss over a photo that apparently showed Barack Obama scoping out a callipygous Brazillian teen at a youth conference.    From Wordnik.com.  [Who Ogles the Oglers?] Reference

Well, okay, maybe if s/he's really callipygous.    From Wordnik.com.  [Archive 2009-11-01] Reference