Rock Paper Scissors Lizard Spock it's the main funny game of the Big Bang Theory TV serial.

Here is the short description of the rules in the game:

1) Scissors cuts Paper
2) Paper covers Rock
3) Rock crushes Lizard
4) Lizard poisons Spock
5) Spock smashes Scissors
6) Scissors decapitates Lizard
7) Lizard eats Paper
8) Paper disproves Spock
9) Spock vaporizes Rock
(and as it always has)
10) Rock crushes Scissors