A derogetory euphamism for one whose posterior quarters contain an abnormally abundent supply of solidified body fats and fatty acids.
by dr. krack head August 29, 2005
Get the Fat-assmug. 
Verb. To carry out activities that may result in one's heine increasing in size, such activities include; eating large amounts of fatty foods, and sitting at home playing computer games all day.
John: I'm going to order 3 pizzas, then consume them all whilst playing COD4
Claire: Stop Fat Assing, you'll become a Fat Ass
Claire: Stop Fat Assing, you'll become a Fat Ass
by Dorrrraaaaaa July 1, 2009
Get the Fat Assingmug. by hell rising February 21, 2019
Get the Fat assmug. Someone with a very wide region for their ass to occupy in the world. They are usally made fun of their big ass
ass
region
ass
region
by UrbanTeen May 3, 2006
Get the Fat Assmug. A fat ass, typically referred to as Miguel De La Cruz, is a lazy fuck who loves sitting his ass down all day playing Rainbow Six Siege while yelling "HOW DID I NOT KILL HIM!?!?!? I SHOT HIM IN THE HEAD!!!!" with the sound of their keyboard being smashed in the background. Furthermore, when asked, fat ass will reject going out to hang with friends. What fat ass's friends don't know is that it's not that he doesn't want to go, it's just his musty ass is stuck in his chair from playing too much video games and he doesn't want to call the fire department to get it out. As usual, fat ass doesn't really have any real friends. All his "friends" are only there to get closer to fucking his sister.
Hey Fat Ass, want to come to the Americana tonight?
Bro, I'm Miguel De La Cruz, you should already know the answer to that one.
Bro, I'm Miguel De La Cruz, you should already know the answer to that one.
by kalensucks March 23, 2019
Get the Fat Assmug. by a1b2c3d4e5f6g7h8i9j1 June 13, 2018
Get the Fat Assmug.