1.(adj.) A person who eats food like it's going out of style (i.e. frequently and in large quantities).

2.(adj.) A person is needlessly overprotective of his/her food.

3.(adj.) A lazy person- an EXTREMELY lazy person.

4.(n) A derogatory term for a person that is overweight. (such a person would have a very fat ass - hence the term).

5.(n, adj.) Any person that expresses any combination of the four traits above.
1. Person 1: I'm hungry.
Person 2: But you just ate 4 T.V. dinners half an hour ago!
Person 1:Ionno, I'm still hungry.
Person 2: Man, you're such a fatass.

2. Girl: Can I have a french fry? *Takes Fry*
Guy: OMG! NO! *snatches fry and hides french fries*
Girl: Jesus. There's no reason to be such a fatass.

3. Billy was such a fatass that he felt the need to drive his car to the supermarket down the block.

4.(on the subway)

Anorexic 1: Oh my god, look at that fatass over there! He's taking up two fucking seats!
Anorexic 2: If I was that fat, I would just kill myself right then and there.
Fatass: Look at those two waifs sharing the seat over there. Eat a sandwich, skinny.

5. -
by dont i know June 18, 2009
if you looked this word up... YOU ARE
you have GOT to be a fatass to even think about looking up this word on urbandictionary.com. get out more
by Eddie J. April 13, 2007
A derrogatory word used to describe an overweight person.
"You're such a fatass."
by Emi Suicide February 15, 2007
1. A person with an over abundance of denial and apathy concerning weight and health.
2. One without the propriety of watching what one eats and how often.
3. An ass youz wanna get wit.

Also see fatfuck.
That fatass was just asking for diabetes!
by Kevin Beal April 23, 2005
A fat person that is a waste of human flesh, and couldn't even have the decency to be a waste of a small amount of human flesh.
Godamnit not fatass again!
by alfa May 13, 2004
An obese asshole.
"Hey fatass, get out of the way so I can eat!"
"But I haven't eaten in ten minutes."
"Oh boo fucking hoo! I haven't eaten in three days!"
"You haven't eaten in three days? Oh my God, you're a zombie!"
"Fuck you, shithead."
"Don't start with me. Compared to me, you're a twig. No wonder you're so mean."
by Anonymous July 13, 2003
someone who sits their large ass next to the computer wasting their time looking up fucking retarded-ass defintitions such as this one, you stupid piece of lard-ass shit.
Get off this damn computer you fucking retarded ass motha fuckin peice of lazy, fat ass shit, and go on a damn bike ride so that yo fat ass can lose some goddamn weight.
by Devin Wagner November 22, 2006

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