1 definition by SupersizedWithADietSoda

Top Definition
A noise that fat people make once in a while or while they are eating.
Average Sized Guy: Hey dude, can you pass the mashed potatoes?

Fat Guy: *Chewing* Ah'em! Merp! No.
by SupersizedWithADietSoda February 06, 2010

Mug icon
Buy a Merp mug!