Somebody who is more attracted to virgins and has a habit of taking their V cards. He often rejects them after that first time. This person could also be considered a player(m) or whore(f).
Although this role is mostly played by males, females could be considered V Collectors as well.
Did you hear that Rachel had sex with another virgin? She has 8 V cards in her possession now, I must admit she is one hell of a V Collector.