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!"
by Reiko Sesshippouru October 26, 2004
1 more definition
The ability to kiss, laugh and be all over evil at the same time!
i just looked up horny on urbandictionary.com ;) mwahahaha
by Aimie :P January 28, 2004