Ingredients: 3+drinkers, beer and a deck of cards.
A nominated dealer evenly deals out the entire deck. The aim of the drinking game is to dispense of all your cards. The player to the left of the dealer places between 1-4 cards face down, stating the number of Aces he or she has. If he or she has no aces, they should lie.
If someone thinks that you are lying, they say "Bullshit!" If that person is right, you drink an amount proportional to the number of cards in the stack and you pick up the stack of cards amounted. This means that lying with lots of cards already played can prove costly. However, if you were honest in your play and someone falsely accuses you of Bullshitting, they drink and pick up the amounted stack.
Play starts with aces, goes sequentially through to Kings and then repeats back to aces.