"Shut the F*ck up newbie" Used to offend people two ways. If they're not offended by "Stfu" then they will most likely be offended by "nub" because it is a game... and people think they're god when they play games and when they're told the truth they get mad.
"stfunubhacker" (Shut the fuck up, you newbie cheater)
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