comes from the word 'monkey skull'
where the head grows out at the back so you look like a deformed fucker. !!munckles may cause bullying!!other forms of the munckle are the garfunckle, trifunkle, quadruncle, ect.
shayne has the biggest fuckin munckle on the back of his head. no wonder no one likes him.
by agoyne!!! February 09, 2007
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