rock-paper-scissors-lizard-Spock

"Rock, paper, scissors, lizard, Spock. It's very simple. Look --
scissors cuts paper
paper covers rock
rock crushes lizard
lizard poisons Spock
Spock smashes scissors
scissors decapitates lizard
lizard eats paper
paper disproves Spock
Spock vaporizes rock
and as it always has, rock crushes scissors."

-- Sheldon Cooper in The Big Bang Theory Episode 8 Season 2, The Lizard-Spock Expansion