Commonly used to refer to a girl with whom you are considering courtship/elopement/copulation/mating/etc. Typically used by people who are less than attractive to begin with; therefore their person-of-desire is considered "prey".
"Spot any PV's (potential victims) tonight at that house party?"
"I'm going to walk around the club and look for some PV's. I'll report back to you with the results."
When you use a surname that you know isn't yours. You are given the name via a fake birth certificate to hide history, and the fact your "dad" isn't "your dad", but you go along with it to stay in good with your "chequebook dad"
Muzza is such a Pretend Murray he had it tattoo'd down his leg, and gave the name to his son who is now also a Pretend Murray. Spoon fed family lies are awful tastier than the truth huh?