Etymology: shiksa + succubus.
A gentile (non-Jewish) woman who takes pleasure in seducing young Jewish men and also taking their respective virginities if possible.
Burt: Why did you break up with the last Jewish guy you dated?
Cecilia: His mom wouldn't let me see him. I took his virginity, just like I'm about to take yours.
Burt: What are you, some kind of shiksuccubus?