callipygous

to have beautifully proportioned buttocks.

it can also be used as a noun (callipygia), and someone who is callipygous can be described as a callipygian
dag! look at her - she's so callipygous!

wooooah! did you see her callipygia?

you know kim? she's quite the callipygian.
by pooshu August 03, 2006
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