The game requires a tree stump, a hammer, and nails (at least 2.5" (7 cm) long), one per player. Each player must also have a beer.
To prepare the stump, nails are hammered into the stump, one per player, just far enough to be stable. Each player chooses a nail as "theirs". To play, the player tosses and catches the hammer, such that it makes at least one full 360-degree rotation before he touches it again. Upon catching it he immediately (without cocking or regripping it) tries to strike an opponent's nail to drive it further into the stump. The opponent must drink some beer, in proportion to the damage inflicted on his nail. There are other penalties which involve drinking beer. The winner is the last person whose nail remains standing.