hippobossamus 

A fat headed arrogant boss that screws you and everyone else at the same time behind your back all while smiling !

Damn. The jobsite superintendent is a real hippobossamus...he's on a real asshole roll today!

hippobossamus by 4Bezerker6 December 10, 2016

Hippokissamus 

a fat person at a party trying to find someone to makeout with.

Jason: Geez Marge, look at that poor slutty Hippokissamus trying to get LeRoy.
Marge: It's never going to happen, he's not even drunk yet.

Hippokissamus by Martin_D August 17, 2007

hippopussamus 

Noun - a highly aggressive and extremely unpredictable vagina of gargantuan size.

Pleural - hippopussami

Yo Bro, why you acting like such a hippopussamus right now?

hippopussamus by NoelJoseph123 March 1, 2017