In fiction, canon is the term used to classify truthfulness in a statement, or in an entire book, movie, short story, or television series. The opposite of canon is fanon, a mixture of the words "fan fiction" and "canon". Here is an example of a canon statement as opposed to a fanon statement: In the 1985A universe, George McFly died in 1973. —That is confirmed by Back to the Future Part II, a source of absolute canon. Lorraine Baines died in 2021, when she was shot by Griff Tannen. —False. Even though some fans could believe it or want it to be true, that doesn't appear anywhere.