So... flying spaghetti monster?

LMAO. Yes it's not real and people don't believe in it. It's an atheist mockery of theists belief in a god. It's a parody, a joke gone global. It represents the meaninglessness of creating a God because technically 'god' can be anything including the FSM, Russells teapot, flying two headed chimera, etc. because no one can prove it doesn't exist. This is the same reasoning many theist us to try and get atheists.