Someone who is a nerd and a retard. Used when they do something stupid and nerdy.
by Jessica Gravel April 30, 2004
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A person who has the physical attributes of a "Nerd" but also has the mental capacity or a "Retard".
Karl - Oh man, that kids such a nerd, but he gets terrible grades.. and is really stupid.

Mike - Nah hes just a Nerdtard.
A nerd and retarded.

Karl - Ahh
by handspringmatt July 20, 2009
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