Top definition
One who exhibits seemingly uncontrolled angry tirades or behaviors
Alice is such a meaniac whenever she's thwarted in any way.
by bitterminnesota November 18, 2009
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2
Someone who is not only mean, but also a maniac. Someone who acts totally crazy while being their everyday mean self. Usually accompanied by their crazy laughter that is so annoying.
Breezy was a total meaniac when I took her Chuck T's away.

"Don't flick boogers at me you meaniac!"

by Lynda Loo Foss November 07, 2007
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