The Invisible Pink Unicorn is used in conjunction with the deity that represents what parody religion and social movement?
Pastafarianism
Title: Invisible Pink Unicorn
Passage: The Invisible Pink Unicorn (IPU) is the goddess of a parody religion used to satirize theistic beliefs, taking the form of a unicorn that is paradoxically both invisible and pink.  She is a rhetorical illustration used by atheists and other religious skeptics as a contemporary version of Russell's teapot, sometimes mentioned in conjunction with the Flying Spaghetti Monster.
Title: Discordianism
Passage: Discordianism is a paradigm based upon the book the "Principia Discordia," written by Greg Hill with Kerry Wendell Thornley in 1963, the two working under the pseudonyms Malaclypse the Younger and Omar Khayyam Ravenhurst.  According to its primary historian (Adam Gorightly) Discordianism was founded as a parody religion.  Many outside observers still regard Discordianism as a parody religion although some of its adherents may utilize it as a legitimate religion, or a metaphor for a governing philosophy.
Title: Flying Spaghetti Monster
Passage: The Flying Spaghetti Monster (FSM) is the deity of the Church of the Flying Spaghetti Monster, or Pastafarianism.  Pastafarianism (a portmanteau of pasta and Rastafarian) is a social movement that promotes a light-hearted view of religion and opposes the teaching of intelligent design and creationism in public schools.  According to adherents, Pastafarianism is a "real, legitimate religion, as much as any other".  It is legally recognized as a religion in the Netherlands and New Zealand – where Pastafarian representatives have been authorized to celebrate weddings and where the first legally recognized Pastafarian wedding was performed in April 2016.  However, in the United States, a federal judge has ruled that the "Church of the Flying Spaghetti Monster" is not a real religion.
Invisible Pink Unicorn Flying Spaghetti Monster