a whiny womanlike anonyjane, who wrote the other definition for radscum here
radscum like to screech about "females" and how transgender women are stealing their "sex based rights", they're really just weirdos obsessed with other people's anatomy and chromosomes that they can't see
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