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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2
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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The vengeful act of crapping on a lover's chest while they sleep.

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3
a person with a large ass.
Watch it tank ass, you'll break the chair.
by mesoglea November 23, 2002
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4
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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The vengeful act of crapping on a lover's chest while they sleep.

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5
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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6
A female with an gigantic rump. Usually an African-American....
Holy shit, did you see Tamika today? Dat bitch has got a tank ass.
by Act As If July 08, 2004
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The vengeful act of crapping on a lover's chest while they sleep.

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7
a person with a huge ass.
Ms. Werner has a tank ass!
by Barry McCockiner March 10, 2005
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