Men or women that contradict themselves via words/action when they are interested in a woman/man and are simply doing it in order to 'test' them as to how far, and how much they will persue.
Jeff: I like you a lot, I want us to be together.
Julie: Um, sorry Jeff... I don't like you like that.
Jeff: WTF bitch!! But you kissed me and sucked my dick?! You're sending mixed signals!
Julie: *blank stare*