The description of a person with a hidden booty. Generally, the person wears baggy pants that has a round, full beautiful ass.
Kate has that ski ass! I don't understand why she always wearing those baggy jeans!
by CuzImBrownhuh March 6, 2010
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Her ass is so big you can ski on it.
She has a bomb ass-ski.
by QuinnahR April 13, 2011
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