To allow someone to be put on blast or allow others to antagonize or question said send out..
Guy: hey why don't you go pet the dog
Girl: does he bite
Guy: of course not(he really does)
Girl: *pets dog, dog bites girls' hand off
Girl: turns to guy, you are such a you send out
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