Top Definition
The antonym of callum, is inclined to punch cunts in the face causing black eyes and broken walls, likely to be found locked inside your nearest shitter with his shirt back-to-front covered in froth and vomit and what appears to be a blown up burrito. Also referred to as MOO.
ohh fuck he's wasted...

yeah man, Mullac is coming...

that cunts evil
by Knights of Colombus1 February 16, 2010
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