The cup that sits on top of the other cups in the game dangerball (kind of like beer pong). When this cup is made not only do you have to drink the beer that is in that cup like beer pong, but your whole team has to take a shot of alcohol. The alcohol could be any kind you have in the house; vodka, 151, whiskey, and so on.
Team1: (after making the dangercup) OH YEAH! Take a shot and slam that cup.
Team2: We'll use the beer to chase our shots.