As in a Fat Person and/or an extremely large buttocks. Can also be used in an insult, calling someone "fat" may not always work, so adding "Fatass" My help to boost your insult to astronomical heights

A fat person who cant move or stand up ...... well only when they are licking the cheeto cheese off their fingers

A fat bitch. So fat they cant even see their penis anymore. Someone who the opposite sex is ASHAMED to be seen with. A large corpulent person with sausage fingers and a fat mush face.

a person that sits on the couch all day and watches shows like Ricki, Maury, and Jerry, and eats bon bons

Someone who is extremely proud of their laziness and should be worshipped for their ability to avoid burning calories.

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.

very big ass or person some one u can point and laugh at