To be badly beaten by hoards of individually pathetic opponents. The expression is believed to be derived from an event that occurred to a cutter who was severely injured by a hoard of angry spider monkeys. However, it's also used commonly by soldiers referring to fellow trained fighters who're defeated by civilians...
Poor Captain Jack, he was an MMA fighter but he still got beat by the monkeys when he was drunk at a grocery store and started a fight with some bagboys.
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