Noun.
Someone who can read a situation or person and react to it appropriately in order to get what they want. Predatorizers are adept at making their targets want to give them whatever it is the predatorizer desires. There is always a sexual aspect involved, though it is not always the desired goal.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi