1 definition by Plug Mama

Top Definition
A fat, smelly, nerdy white guy with a beard and long hair whose into stereotypically dorky hobbies/interests such as comic books, sci-fi, anime, traditional RPGs, colectible card games, LARPing, and/or furry art.

Rarely seen in public, they only come out of their parent's basements to attend conventions of their favorite interests, such as Star Trek, Inuyasha, or furry porn. Fatbeards have the personality of a wood plank.

Fatbeards are also known as:
trekkie, otaku, Linux user, cosplayer, Wapanese, furry, LARPer, otherkin, and loser.
The Comic Book Dealer from The Simpsons embodies what a fatbeard is.
by Plug Mama February 23, 2005

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