A spot between the hole and the balls that can be stroked, which can result in an orgasm. Mainly preferred by males who hadn't had sex in a long time, or never.
Roberto: Hey Ryan, what mastribating??
Ryan: I heard it's an alternative way of pleasure.
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