1 definition by Omitshod

grumplepotamus

A very very grumpy person who is prone to snap or "go off" much like a grumpy violent hippopotamus. See also grumpy gus, grumpus, grumplestiltskin.

Richard is being a total grumplepotamus this morning, what the hell is wrong with him?

by Omitshod December 11, 2013