A legendary beirut/beer pong shot that lands on the tops of four cups simultaneously. Considered the rarest shot in the
game, topping even the trifecta,
2-cup knockover-and-sink, and simultaneous 6-cup
game-ending double bounce-in. Counts as 4 cups and has never happened in recorded history of the game, despite being theoretically possible.
So rare for the following reasons:
1) Only possible with smaller-than-average cups.
2) Only possible when cups are arranged in a
perfect square formation (not possible in a standard game).
3) The physics of it happening are similar to those of the trifecta, which almost never happens in itself.