This is a variation of the classic Rock, Paper, Scissors game that introduces two new items. The "Spock" is the Vulcan salute and the "Lizard" is a sock puppet mouth. In addition to the regular RPS rules, here's how to incorporate Spock and Lizard:
Spock smashes scissors and vaporizes rock.
Spock is poisoned by lizard and disproved by paper.
Lizard poisons Spock and eats paper.
Lizard is crushed by rock and decapitated by scissors.
Another variation is Wood, Fire, Water. Fire burns wood. Wood floats on water. Water puts out Fire.
Now go find someone to play with