"Who the fuck are you?" is typically used in anger-inflicting fashion. It is used to ask a person who they are to say that and what the fuck they are doing in that place, place being physically or electronically. People who say are usually trying to be mean and trying to offend the other person.
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
May I have an order of regular degular buttermilk pancakes? Without all the added jazz? Hold the blueberry smiley face, strawberry glaze, chocolate chips and whipped cream.