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1 definition by www.analdoesntcount.com

Container ass is used to describe an ass that only looks good because of the pants being worn. The definition works two ways in that the ass only looks good when in a container (pants) and the pants contain(h)er ass.
Damn, she has a hot ass! Yea, but take off the pants and I'll bet it's a container ass.
by www.analdoesntcount.com October 10, 2007