Flatassed

When a girl has no ass.
My sister.

Damn Pablo, have you noticed that my sister is flatassed!

by meitesties June 5, 2013

Flatass fatass

A fat guy with a flat ass.

Mike Pulaski is a single flatass fatass who keeps eating brisket after brisket. He's gonna be over 300 lbs soon.

by Solid Mantis October 15, 2017

Flatassitosis

A condition in which one's gluteus maximus is less than the required amount for effective booty shaking.

Due to my state of flatassitosis, I will be unable to partake in the twerking competition.

by Rainestar June 29, 2018

Flatassmentalimparment

When a girl thinks she has a fat ass but she doesn’t have any ass

That poor girl over there has flatassmentalimparment

by Bigboy3578347 July 4, 2019

Flatassmentalimparment

When a girl thinks she has a fat ass but she doesn’t have any ass

That poor girl over there has flatassmentalimparment

by Bigboy3578347 July 4, 2019

flatassitish

Pronounciation: flat-ass-eye-tish

Definition: Keiko Roy

"Damn keiko ass real flat"
"ikr she got flatassitish"

"she need a bbl fr"
"Yh in severe cases of flatassitish a double or maybe even a triple is needed"

by stanbtsyouhouseslaves November 23, 2021

flatass

like fatass, but with super flat people

person a: which person in here haz the biggest boobs
person b: me ofc

person c: no fuck u ur flat af
person a: stfu flatass

by aarghh c coom arghh September 30, 2020