mwahaha 

Denotes evilness. Usually uttered by the very clever while they develop an evil plot. Often accompanied by smirks and sideways glances.

"They don't suspect a thing...MWA HA HA!!!!"

mwahaha by Cpt.Flint September 18, 2005

mwahaha 

devilishness an evil sound when ur up to something

mwahaha by Anonymous September 26, 2003

mwahaha 

A common supplement to a comment in internet discussion,used almost exclusively by relatively innocent females; it generally follows a particularly naughty, empowering, or triumphant moment for them in a discussion. Outside of direct discussion (i.e; in a profile, email, etc.), it often follows something entirely random that they said in what they somehow deem to be a very naughty and rebellious overhaul of common sense.
Generally, if you are a male, any use of this directed at you is a good sign; its a flirty, suggestive word choice (similar to the sound of a kiss), and when used with males it almost implies a sort of lustful blushing. It suggests that said female finds you fun, and is comfortable being playful with you.

1. tom (after losing to jen in online billiards): wow, how did that happen?
jen: i guess im just better than u at everything mwahaha

2. kelly (emailing diana): omg diana your new hat today - SOOOOOOO cute, you were better than a giant mushroom with an aluminum bat whacking a dancing hippo in court!!!!!!!!!!!
mwahaha

mwahaha by edoggio July 25, 2008

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