Top definition
an ass so large that if you tried to assram it your penis would not penetrate the rectum.
by sonny bono September 06, 2003
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Aug 9 Word of the Day
Large, beautiful breasts that are keep well consealed and initially appear to be much smaller and less impressive than they actually are until unleashed.
I think Alicia may have some real sleepers.
by KABT October 26, 2007
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2
A posterior so large, it is able to sustain the blow of an artillery shell.
Have you seen J-Lo's new video? Jesus christ she has got some kind of Tankass.
by Anonymous February 07, 2003
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3
A fat angry man who has the same body composition of, and design as an M1A1 Abrams battle tank. Except without workable treads. Has sat on the same pillow for the past ten years, contact will cause pink eye.

Spends his time eating mostly TV dinners and small children.
Josh Fien is a Tank Ass.
by The Truth Hurts Fien February 11, 2010
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6
the ass of a person who's sole reason for existance is to be a life support systems for said ass.
by Anonymous February 19, 2003
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