The act of a pregame, except this time the alcohol is free. Usually takes place during college, where you can easily slip in to some house party nearby before going out. Your only connection is typically some distant acquaintance. Therefore, you aren't close enough friends to actually feel obligated to chip in for the alcohol, but you're close enough where they won't kick you out before you get a chance to take a few shots.
Steve: Hey, did you hear about Pooter's 21st birthday party downstairs?
John: Oh yeah, wasn't she the ex-girlfriend of your freshman roommate's biology lab partner?
Steve: Who cares, we get to freegame.