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
by Shane December 14, 2003
by wywywywywywywyw January 21, 2020
a person that sits on the couch all day and watches shows like Ricki, Maury, and Jerry, and eats bon bons
you're a fat ass
by fatty January 14, 2003
A fat person who cant move or stand up ...... well only when they are licking the cheeto cheese off their fingers
by mickster 555 September 12, 2006
by paula rangel April 12, 2008
a FAT ASS is a voluptuous female butt that brings many men (mainly black guys) pleasure to the eye. It is often very round and large in size.
by booty master2395748 March 17, 2014
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.
by fdhitelbacher February 29, 2008