Worried about possible injuries? You should be. It's not a proper beer pong dunk unless it ends in several bruised ribs and a severely destroyed tabletop.
Implications - This extreme drinking sport is the result one-upmanship being taken to its logical conclusion. If you have always wanted to be a WWF wrestler, this is your opportunity to do so with friends. Check you have medical coverage before leaping into the beer-soaked oblivion.