2. a woman who unscrupulously exploits, ruins, or degrades the men she seduces.
3. a cocksucker
Johnny: oh shit! Jake’s a penis vampire!!!
Duke: but there are no bite marks on his neck, how can this be happing?
Johnny: it was Emily, that bitch she bit his dick and turned him into a undead cocksucker.
Male 2: Why what happened?
Male 1: She asked me to help her study for philosophy and she was all flirty and I thought I was in but after the exam, she totally ignored me.
Male 2: That Penis Vampire sucked you dry!