non-slut
A girl that claims to be DTF, WTC or slutty via blogging, myspace or some other social networking avenue then when faced with an IRL opportunity to be slutty she is not.
MM: Did you hook up with that girl you met off myspace last night?

BST: No.

MM: Her Profile looked like she was totally DTF.

BST: Nope, she was a total non-slut  