Callipygian - Having well-shaped buttocks

I don't know about the rest of you, but I find walking like a Callipygian fairly challenging.

I can see Oscargamblesfro now,enjoying the attentions of his Callipygian Harem....

Callipygian girls you make the rockin' world go 'round - GET ON YOUR BIKES AND RIDE!

Yes, I'm rather fond of women with Callipygian attributes.

Never heard this one before...but need to keep it in mind for when I see a nice male behind.....

I used it maybe once or twice to describe a lady's shapely derriere.This is a good trait to have.

The only time I ever heard this word in a song was "Vicki Dougan" by the Limelighters in the late 1950's. Vicki stunned the world by wearing a dress so low cut in the back that it revealed the start of a new cleavage. The song talks about Vicki's dress and then to the "callipygian cleft."