Top Definition
1 A person who has overcome his retardedness.

2 Also used to make fun of someone dumb who has achieved greatness in their studies, exams, etc.
1 Doctor: ma'am, we have finally cured your brother's mental retardation...he is now officially an extard.

2 John: we can finally say that that dumbass Mike is an extard. He actually passed an exam!!
by Vass Zaitsev August 01, 2009
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