a person (usually male) who displays rapist qualities, but is not actually a proven rapist; someone who displays pervy or inappropriately handsy behavior towards women to the point at which one believes he could be a rapist, but has no evidence to prove so
Girl 1: There's the guy who squeezed my butt!
Girl 2: Todd?
Girl 1: I guess. He totally grabbed me though!
Girl 2: God, Todd is such a raper.