The object is to drink as much as you can, for as long as you can,
without stopping. Put both hands on the keg. Have your friends get your
feet, and tip you upwards do you're doing a handstand on the keg. Wrap
your thirsty lips around the tap, open it, drink. Keep track of your time.
Compare times with your friends. Oh yeah, shake your head to signal somebody
to close the tap.
Courtesy of: Nic.funet.fi