Top Definition
Someone with a momentary or lifetime mental handicap...

To be a "Tard" + "again", or a transposed "re" + "tard".

Derived from "retard" (noun / verb), further derived from Latin "retardare", from "re-" (again) + "tardus" (slow).

Pronounced "tar-da-gain" \tär-di-gên\ , similar to "cardigan"
WTF? Damn, you're a tardagain!!!

That guy is a real tardagain!

by Shawn Wargo April 01, 2008

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