A massive mammal with an even bigger cock attached to the crotch of a man. Legend says if you penetrate an ass hole deep enough with a hippo cock you can split the large intestine in half.
You hear the new Arab kid is slinging some hippo cock?
God damn Muslims. Ruining all them girls ass holes for the rest of us.
This expression can be used to describe anyone, male, female or transgender. When applied to a male it usually means that he is a monkey fucking idiot who thinks only about sex and is only happy when he is using his cock and will use it on any female even the most minging munter imaginable. When applied to a female the implication is that she is a nymphomaniac and is only happy when she has a cock, any cock, even that of a monkey fucking idiot inside her. With transgender either or both definitions could apply.
Malcolm would like to be cock happy, but he washed it for the first time and it shrank to a winky.