gateway chick
A woman who is notorius for the way they get around, usually male virgins will loose their virginity to this woman and eventually move on to another woman.
"hey man i dont wanna graduate high school a virgin, so what do i do"
"hook up with Kaylin, shes a gateway chick, she will take care of you."
"hook up with Kaylin, shes a gateway chick, she will take care of you."