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

A male that is too lazy to have intercourse any other way besides flat on his back

Once men turn a certain age they become “flatbackers “ ...

by Fat rabbit June 28, 2019

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

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

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

Virginia Flatback

Another Term For Vagina

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

by Major.horsecock December 22, 2023