A psychotic rapist. Well no, more like a rather bizarre young man whose favourite pasttime is raping other men in the showers. Used in either a supporting or derogatory fashion, depending on the connotations of the sentence. A positive usage constitutes a dominant male without any competition.
A positive use of Phin: Man, did you see that guy the other day? He looked like a total Phin with that girl!
A negative use of Phin: The guy's such a Phin... Did you hear about what he did to my neighbor?