1.Past tense of "flatbacking." To have slept (ie sexed) your way through something.

2. To have prostituted your way through something, either by trading for sex or by selling sex for money in order to pay.

A sexually promiscuous woman who prefers the missionary position. Originally used in detective novels of the 1930s and 1940s as "flatbacker".

A redneck hooker who lays on her back for a living . To make money

A bitch or bird with no job who sleeps around for money and material things.

When the the back of your hair is flat from the result of laying flat down on your back.

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

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.