Flying Spaghetti Monster

According to the movement's origin account created by Bobby Henderson in an open letter (January–May 2005), an invisible and undetectable Flying Spaghetti Monster created the universe after drinking heavily. Henderson formulated the FSM as a rhetorical mirror to intelligent-design claims; the letter and subsequent texts (The Gospel of the Flying Spaghetti Monster, The Loose Canon) anchor the FSM as the movement's creator figure and founding narrative.

Movement materials and community imagery depict the FSM as a being resembling spaghetti and meatballs that flies; simultaneously, Henderson's origin claim describes the FSM as "invisible and undetectable," a rhetorical posture that blends a noodle-and-meatball visual trope used in fan imagery with asserted invisibility in the creation myth.

Within Pastafarian origin accounts the FSM is credited as the creator of the universe and is rhetorically said to intervene in measurements (for example, "changing the results with His Noodly Appendage" when scientists carbon-date an object). Beyond cosmogenesis, the FSM functions behaviorally as a rhetorical and communal figure: it is invoked in satire, media appearances, online "sightings," crafts, and public advocacy opposing the teaching of intelligent design as science.