When a man craps on a woman’s face, proceeding to sit on the face rubbing his behind back and forth on the face until the woman has turned from white to brown.
Bob: "I heard you and your new girlfriend last night. What in the Hell were you doing?"
Bill: "Oh you know, The Reverse Michael Jackson."
Bob: ?????
Bill: "Sex, Bob. With my adult wife."
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