Two or more people having a conversation together on someone else's foursquare check-in.
Person that checked in: "This place is the best"
Person 2: That place sucks, who wants to go to ****?"
Person 3: Me!
Person 4: I'll be there!
Person that checked in: did I just get fourscored?
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