(n) A common term for an internet douchebag. Normally, he is a person that claims to be gay for a longperiod of time. Then, he dies. Oh, and then he comes back non gay anymore.
Wow, that dude is such an MQ19. He was gay last week. What a fag.
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