Top Definition
A woman with a normal-sized body with an INSANELY large ass.
"I was chatting up this chick at a booth, and all of a sudden as we get up to dance, I could see she was a full-blown hippobottomus!"
A woman with an enormous, hippo sized Bum.
Chad - Jeezus, look at the Butt on Tanya...
Cooper - Yeah she's a real Hippobottomus!
by BennyKoops June 29, 2016
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