Top Definition
Someone who uses their vast knowledge to piss people off.
Mike: Did you know that (insert annoying fact here)?
John: No, and I don't care. Your such a smartasshole.
by psudoe August 04, 2012
n: smartasshole

Impertinent; insolent.


The buttocks; anus.


A hollowed place in something solid; a cavity or pit.
"Michael Moore is beyond smartass, he is a smartasshole."
by Gohei27 June 22, 2004
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