Each Player must hammer a nail slightly into the stump to mark their place around the circle, with the nail standing upright and only about 1/4" into the wood. Players pass the hammer around to take turns.
On a players turn, he/she must hit an empty place on the wood, followed by a middle nail which is placed at the center of the stump, and finally another player's nail. Typically, this is done with the player's opposite hand.
When your nail is hit, you must take a shot/drink. If it is your turn and you do not hit the middle nail, you forfeit the chance to swing at another player's nail and must take a drink. This also applies if you swing at another person's nail and miss.
A player is "out" when his or her nail is either hammered completely into the stump so that it cannot be removed with the back of the hammer or by slamming the sides, or if the nail flies out of the wood after being hit.
The winner is the person whose nail outlasts the others, and generally the most sober player at the end of the game.
This is thought to be the dumbest and most fun of all party games. Also thought to have originated at Ohio University, the #1 party school in America.
Everyone at the party: WTF is Stump?
Kid: "Oh you'll see."