A cross between a mutant and a retard.
Look at that kid Jordan with his freaky fish lips and his giant shovel hands he's a freekin mutard
by NachoDude316 February 18, 2011
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A person who posseses the defining characteristics of both a mutant and a retard.
A person of little social credibility.
Child - Mum, why is tha man drooling?

Mother - It's rude to stare, he is a mutard, he can't help it.
by Child of the Monkey Basket August 17, 2003
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