To act as a neutral party during an event or argument.
Guy 1: Hey has Jane picked her Super Bowl team yet?
Guy 2: Nope, she's playing Sweden this year.
Guy 1: So what did Joe think about the divorce?
Guy 2: He's friends with both of them, so He's gonna play Sweden.
stayin nuetral in an argument or fight.
Jack: so, whos side are you on?
Greg: i think there both acting dumb, so im just going to play sweden