Muahhahaha 

An evil laugh. A laugh one does when they are about to do something evil. Such as when a villan has a plot to take over the world, he does this laugh right before it goes into effect. Also a noise made by people who have just gotten away with an evil deed or crime.

Finally, the world is mine! Muahhahaha!

Muahhahaha by Stuy The One (Lewis) October 9, 2005

mwahahaha 

Obligatory evil laugh, used often in internet forums and in conversations with roleplayers. Also used in informal RPGs.

Reiko sneered at her nemesis. "...and there's nothing you can do about it! Mwahahaha!"

mwahahaha by Reiko Sesshippouru October 26, 2004

muahahahahaha 

a laugh used when thinking of evil things

muahahahahaha by Anonymous August 28, 2003

MUAHAHAHAHA 

To laugh as if your evil.

"Your evil!"
"I Know, MUAHAHAHAHA"

MUAHAHAHAHA by Jebrone May 13, 2005

muahaha 

a very evil laugh

I ate all the cake muahaha

muahaha by gjregiufdgnboreqhrsdhgernureib January 3, 2010

muhahaha 

supost to be an evil laugh when being typed in a game

wana be:muhahaha i will eat ur fish
littil girl:moron

muhahaha by pimp daddy d June 2, 2005

moohahaha 

the sound and evil cow makes
not to be confused with "mwahahaha", the sound and evil poop makes

Dairy farmer: Oh no! all the milk has gone bad!
Evil cow: moohahaha

moohahaha by pEdRo26 August 23, 2011