Rather sexist term used to describe a way that a man behaved in a given situation as being feminine or unmanly.
Man 1: "Did you hear Joe complaining about that papercut all day, you would think he had lost an arm."
Man 2: "Yeah, he's definitely a vaginal nominee this year."
Man 3: "I'd vote for him!"
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