Somebody who has an overly large blob, which they call a head, protruding from their neck. Or someone who thinks their at the top of the bottle looking down on everyone else.
Oi Faris, you Fathead!
by fatheadfaris April 26, 2009

by Madeline (Hermaphrodite) June 8, 2004

Rene your such a fathead
by fatheadlover September 12, 2003

by the lightskin from degeneres? February 5, 2019

by Nausea Jenkins October 28, 2005

A person who sits in their bedroom all day taking potent hoots of oil and hash in a 2 foot tall bong playing world of warcraft and playing xbox 360
Person 1: Look at Adam that potent fag playing world of warcraft and taking bong hits, someone smack that Fathead.
Person 2: No shit, hes starting to smell like cabbage!
Person 2: No shit, hes starting to smell like cabbage!
by Someone Potent December 15, 2008

by Waaj October 7, 2011
