MSTing

MSTing /ˌɛmˌɛsˈtiː.ɪŋ/, MiSTing /ˈmɪstɪŋ/, or riffing is a method of mocking a show in the style of the television series Mystery Science Theater 3000 (MST3K) and, in particular, is a form of fan fiction in which writers mock other works by inserting humorous comments, called "riffs", into the flow of dialogue and events.

In MSTing, the author picks a badly written piece of text—usually a Usenet post, web page, or some other source such as a rant, spam or fan fiction—and inserts mocking comments from fictional readers of the text, essentially writing a script as if the MSTing were a movie. While "standard" MSTings attribute these comments to the three main characters of the MST3K cast, others might use characters - usually (though not always) from the universe of the story being mocked. Often a prologue, epilogue, and intermissions are added in which the characters discuss a topic on the same theme as the original text, although intermission segments are usually dropped if the original work is short. Over time, the term MST has also been used to describe general fan fiction mockeries, without the use of the MST3K character-based joke format.

MSTing began in the early 1990s, as fans of the show, many of whom were involved in Usenet discussions in groups such as popular MST3K newsgroup rec.arts.tv.mst3k.misc, began adding amusing or critical remarks to others' posts, attributing them to the show's characters (typically, Crow T. Robot, Tom Servo, Joel Robinson, and later Mike Nelson).

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