1 definition by OneFatGeek

A Fatbeard is a fat male, with a beard, who has a collection of comic book's, know's way to much obscure Star Trek trivia, and probably play's M:TG and various pen-and-paper role-playing-games.
"Hey, check out the owner of the store, man. Total Fatbeard."
by OneFatGeek February 6, 2005
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