Nowadays, fanfic or fan fiction is nonprofessional fiction written by the enthusiasts of a TV series, movie, book, or comic book, which takes place in that universe. It's usually dreadful -- Sturgeon's law applies here as much as elsewhere (see also Slash).
This usage is relatively modern, dating from no earlier than the 1970s. The previous usage was different in some important ways:
There were actually two kinds of fiction called "fan fiction" 1. SF written and published non-professionally by fans 2. Fiction (not necessarily sf or fantasy) written by fans about fans. This was sometimes called Faan fiction.
Original Sense #1: Amateur SF
Non-professional SF is of greater antiquity than sense #2, and the very earliest fanzines frequently contained this sort of fan fiction because fandom's first couple of decades were heavily focused on sf and many fans were focused on writing sf and breaking into the pro world. (And many succeeded.)
But still, the amateur sf printed in fanzines -- usually put out by relative neofen -- has generally been looked upon with disfavor because, with rare exceptions, if the piece were any good it would be published professionally. The problem id that people who write sf for fanzines generally learn little besides how to write bad sf for fanzines. The vast majority of active fans who've "gone pro" have been those who contributed relatively little fiction and a lot of essays and articles to fanzines .
(Roger Zelazny was a major exception to this rule, having contributed (as a teenager) a truly terrible sf story to Thurban I, one of the worst crudzines of all time, and then going on to a brilliant pro career writing science fiction some time later.)
Now, of course, this stuff is all self-published in an infinite number of POD paperbacks and sometimes looks pretty professional.
Original Sense #2: Fiction About Fans
This has sometimes been called Faan fiction (note the fannish a in faan which says this is about fandom and not about sf). Faan fiction, as distinguished from fan fiction, refers to stories written by fans that use real or fictional fans in fannish situations as its subject matter. They're most commonly science fiction or recursive science fiction, fantasy, mysteries, or parodies -- the genre doesn't matter.
The best known and most beloved of this genre is The Enchanted Duplicator, but there have been many. Faan fiction stories are typically printed in fanzines, but some have made it into the prozines, and a few, such as Tony Boucher's mystery Rocket to the Morgue and the Buck Coulson and Gene DeWeese novels Now You See It/Him/Them and Charles Fort Never Mentioned Wombats, have been published as books; there have been a number of stage plays, and Larry Tucker's FAAnS was a video.
While professionals may write faan fiction, and several have, the term applies only to fiction written by fans for fans, so it does not include abominations such as Zombies of the Gene Pool and other works by mundane writers, nor does it refer to random Tuckerizations of fans in professional fiction.
+=== Examples of Faan Fiction===
- The Battle That Ended the Century, probably by H. P. Lovecraft
- Rocket To The Morgue by Anthony Boucher (as H. H. Holmes, 1942)
- The Case of the Little Green Men by Mack Reynolds (1951)
- The Enchanted Duplicator by Walter A. Willis and Bob Shaw (1954)
- "A Way of Life" by Robert Bloch (1956)
- The Mimeo Man by Moshe Feder, Debbie Notkin and Eli Cohen (1974)
- Now You See It/Him/Them by Robert Coulson and Gene DeWeese (1975)
- "The Grinch Who Stole Worldcon" by Bill Fesselmeyer (1975)
- Charles Fort Never Mentioned Wombats by Robert Coulson and Gene DeWeese (1977)
- FAAnS by Larry Tucker (1983)
- "The Island of Dr. Gernsback" by Arthur Hlavaty and Bernadette Bosky (1987)
- "A Proud and Lonely Thing" by Leah A. Zeldes (1994)
- "The Man Who Corflued Mohammed" by Mike Glyer (1994)
- "In the Beginning" by Anthony R. Lewis (1994)
- "Cold Service" by Bruce Pelz (1996)
- "Yesterday's Stormy Fable" by Leah A. Zeldes (1996)
|From Fancyclopedia 1 ca 1944|
|Sometimes improperly used to mean fan science fiction, that is, ordinary fantasy published in a fan magazine. Properly, the term means fiction about fans, or something about pros, and occasionally bringing in some famous characters stf stories. It may refer to real fans by name (Tucker nudged Brackney, who was nursing a "black eye"), or may be about types, especially Joe Fann. The background may be either fantastic, as Joe Fann into Space, or mundane as in Murder at the Chicon (tho this piece is fantasy under Speer's decimal scheme, describing events which we know didn't happen in our time-line). Fictitious elements are often interspersed in account of fan activities, which may make them more interesting, but plays hob with a truth-seeker like Thukydides. Round robins have been attempted in the fan fiction field.|
|From Fancyclopedia 2 ca 1959|
|(1) Sometimes meaningby fans in the manner of pros; that is, ordinary fantasy published in a fanzine. Properly, it means (2) fiction by fans about fans (or sometimes about pros) having no necessary connection with stfantasy. "Convention reports are a nice example of this", Bob Pavlat points out. It may refer to real fans by name: "Redd Boggs silped his Nuclear Fizz in the insurgent manner..." or it may be about types, especially Joe Fann". The background may be either fantastic, as "Joe Fann into Space", or mundane, as in "Murder at the Chicon" (tho this would be fantasy under Speer's scheme, since it describes events we know didn't happen on out time line). Fiction elements may be interspersed in accounts of fan activities, which may make them more interesting but is hell on truthseekers like your Thoukydides. A few special categories have been distinguished from time to time, like Ted Tubb's "Trufan fiction" (fiction about fans in fandom), and Larry Stark's Serconfanfiction for serious, and more or less mundane, fiction featuring fans.|