mong-head 

Same as monghead but with a hyphen.

He got all his questions wrong in the quiz; what a mong-head.

mong-head by F A B Scott May 4, 2006

monghead 

a random word, used as an insult, with a meaning along the same lines as retard, but perhaps less harsh and serious

'you said that snow white was adams 'friend' in the garden of eden?'
'uh.. yeah..'
'you monghead!'

monghead by BlinginMongHead January 7, 2005