A singlelingual is a person who is truly by themselves. They are incapable of making any meaningful connections, and they can also not speak more than onelanguage.
“Hey, have you seen Jerry around recently?”
“Nah, he’s a total singlelingual.”
“Wow, what a loser.”
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