Top Definition
A being or objet which get done up the bum hole and/or is a dyke. A "Moonisah" is tipically a midget whom try's to "start on" a taller friend who could kick there arse.
But she's a lovely little girl but also a dyke and smells.
It's a Moonisah!
by Teehee12 October 23, 2010

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