Back Scratcher

When you are grinding with a girl, or doing any chest-to-back dance, and you get an erection that is therefore "scratching" her back. Depending on the severity of it and how intoxicated the girl is she may not feel it at all.

A racial term for an illegal Mexican immigrant. It originated from the myth that Mexicans crawl under the U.S fence to get into America. In the proccess, their backs get scratched from the fence. (Also, see "wet backer")

A guy who's usually not into romantic relationships and goes more for the casual sex. He's more akin to lover who satisfies a woman's needs, usually married women, and won't go telling everyone about the ordeal.

your girlfriend during rough sex.

When someone shits in their hand then gives you a good rough back scratching

The act of wall sitting on a tree in the woods and deficating while recieving head

When a woman and a man are engaging in missionary style sex, the woman wraps her unshaven legs around the male's back and proceeds to rub up and down, thus resembling a back scratcher.