Male genitals engulfed by fat, so that when a man is sitting his stomach fat rolls down into more fat rolls in the crotch area. As fat as a hippopotamus.
`Did you see that guy back there at the bus stop? He was so fat, his hipposcrotamus was hanging off the bench.
by bonnief December 10, 2006
Female genitals engulfed by fat, such that the stomach area of the woman just rolls down into the vaginal area. Fat like a hippopotamus. Hipposcrotamus version for the male.
by bonnief December 10, 2006