Flatassed 

When a girl has no ass.
My sister.

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

Flatassed by meitesties June 5, 2013

fatassery 

(adv.) when a severly fat person orders an assload of food but finishes the order off with "and a large DIET coke"

i'm tired of al's fatassery! he always says, "i'll have 2 big macs, supersize fries, apple pie & a large DIET coke, please."

fatassery by junewho October 18, 2006

fatassed 

When something gives way or breaks due to a sudden increase in weight that was put upon it.

Wow! She really fatassed that beach chair! We had to throw it away!

fatassed by sporto April 8, 2006

Fatassed 

verb, past tense
(fat-ass-ed)

to waste time, to do nothing for a long period of time. the act of being a fatass.

Ryan: Wow I haven't done anything today.
Hannah: Same, I just sat at home and fatassed.

Fatassed by Hannah412 February 6, 2009

fatassdon 

usually a very unloving person who is very fat, often named "big don" or "tubalard" or "twinky" like talahassy :D often man of the house.

DAMN LOOK AT DON! HE'S A FATASSDON BRO.

fatassdon by FAGGOT$4LYFE. December 14, 2010

flatasstrophy 

The condition which causes the breakdown of the gluteus maximus muscle caused by age, poor genetics, or skipping leg day at the gym.

It’s apparent he isn’t doing squats in the gym because he has major flatasstrophy.

flatasstrophy by DefNotRight January 17, 2018

flatasstic 

If a chick is otherwise fine but her ass is lacking, she's flatasstic. Usually used to reject an attempt to rate her as a dime.

Yeah, she's tight as hell but she's still flatasstic.

flatasstic by Machete April 11, 2005