At UC Santa Barbara we called this Four Banger. Best drinking game ever. In our version when you finished your beer you had to hold it upside down for 3 seconds, without having it drip, to prove it was empty. If it dripped you could either forfeit or get a new full can and start over. The other team could also throw their pong ball at the person or the can to try and make it drip during the countdown. Shots to the face all day.