5 beers test - a universal standard to measure greatness by. Does it pass the 5 beers test ? eg, the 5 beers test for a song is that if you've had 5 beers, and that song comes on, you have to hit the dance floor. If you do it by reflex, then it's a pass.
5 beers test for a computer game: if you've had 5 beers and someone mentions a computergame, and your immediate, reflexive, unthinking response is "That game is awesome !", then that game passes the "5 beers test".