An addition to the word stain, when talking with friends. When you want to "stain" (engage in sexual intercourse with) a member of the opposite sex, you make the statement "Man, I'd take her to Stainsville". Basically you're referring to the act as a town/city/location.
1) Dude... she is first class Stainsville material.
2) I'd take her on a round trip flight to Stainsville.
3) Yeah dude... I took her to Stainsville.
4) Guess what bro.. I took Janice to Stainsville last night. The trip lasted 20 minutes.