A short human equally retarded
See that guy over there, little tank for sure
Combines elements of both tanked and shit-faced. A supreme level of inebriation. Includes a high likely hood of being arrested or the possibility of waking up in a ambulance/hospital. Though rarely occurring, getting tank-faced is often a life changing event.
Tom: "How did Dan's birthday celebration go?"
Bill: "He was out of control, after a bunch of shots he was so Tank-faced we lost track of him. I got a call this morning, telling me to come pick him up at the police station."
"Ryan, spank my tank ples," Rebecca said with a smirk.
"I cant wait to get up with that girl and do a little busting the tank"
Generally, a wide, thick butt that doesn't have reasonable curvature (A.K.A. bubble butt) or shapely definition.
A large butt that lacks roundness (may be flat in places), although it may have depth, and a shelf.
My girl gained a bit of weight after the baby, and it all went to her hips. Her booty used to be round, but now it's more of a tank ass now.