Pizza hangman is a game very similar to hangman.
If you're not familiar with hangman, here's a quick rundown:
There's a secret word to be guessed, all you know is the amount of characters in the word.
You guess the word one letter at a time, every guess will be recorded.
If your guess is correct, the letter will be revealed in the corresponding locations in the word.
If your guess is wrong, a part of the "hangman" is drawn. If the hangman drawing is complete, you lose the game.