With 3 1/2 mins left in the first half, Santana Moss catches a deep pass from Redskins QB Jason Campbell. He then gets up and flashes gangs signs to the crowd. It appeared to be the classic west side 'W', but it may have stood for Washington.
I didn't see it, but I'm thinking it's for Washington. Moss grew up in Miami, went to Carol City, then The U, played in NY and Washington. There's nothing 'west' about him.