Used to describe favourable beats of hip-hop origin.
"Man that beat's so phat it's clinically obese"
5π 15π
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.
32π 8π
the ass of a person who's sole reason for existance is to be a life support systems for said ass.
36π 19π