Flatback

Someone who has a flatback as a result of laying on their back too much. Who are of a promiscious nature. Or simply, a female who is a sloppy, loose, trollup.

"man, that Deanna, she is such a flat back, I have seen her with 3 different guys this week!"

or

"Wow, why is he dating that flatback whore?"

by Elphaba. W. Witch August 5, 2008

flatbacker

Someone who fucks their way to the top. On their flat back!

That whore is so stupid. There's no way she got her high paying position because of her brains. She is just a flatbacker.

by Dogofalljones May 16, 2017

Mustang Flatback

The act of having sex in the back seat of a Ford Mustang

Me and my girlfriend went cruising, and ended up doing a Mustang Flatback.

by Phyllis Biggun July 16, 2008

Flatbacker

Some lady who thinks its ok to make her way on her life path while being flat on her back, giving up what's between her legs, in order to get there.

I can't believe how that chick sits back and gets paid, is given a car, and she is just a foul flatbacker!

by AshKraft August 10, 2021

Flatback

Reference to a retard or artistic person whos back off their head is flat.

That flatback is tring to bight his own ear.

by Jack Metcoff August 12, 2025

Flatback

To get slammed by Corbett Callahan

Person 1: holy shit he just flatbacked that state trooper
Person 2: yeah, that’s Corbett Callahan

by Chodemuncher September 8, 2023

Virginia Flatback

Another Term For Vagina

That girl had some of the best virginia flatback i ever had!

by Major.horsecock December 22, 2023