A stereotypical geek; i.e. one who looks like the Comic Book Guy from "The Simpsons."
"Want to go down to the game store?"
"No, the owner treats everyone except his fellow fatbeards like hell."
by Qit May 8, 2005
Get the Fatbeard mug.
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
Get the Fatbeard mug.
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
Get the Fatbeard mug.
An obese caucasian male who knows WAY too much about star wars , D&D and the like. The ugly cousin of cat piss man.
The comic shop in my area has too many fatbeards.
by queen_azure March 11, 2008
Get the Fatbeard mug.
verb: To talk pedantically and at great length about minutiae in nerd and geek culture. Especially concerning tabletop games such as Dungeons & Dragons or Warhammer Fantasy Battles. Typically used as a pejorative.
Jeff wouldn't stop fatbearding about his new strength-spec'd rogue. Dude spent an hour dissecting his feat selection!
by blood ogre September 20, 2009
Get the fatbeard mug.
One who is consumed with fat, has a beard, and suffers great problems when both are combined.
"Damn Robert, your fatbearditis must be acting up today."
by Robert Clayton March 25, 2004
Get the fatbearditis mug.