This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Fiction that deals, often playfully and self-referentially, with the writing of fiction or its conventions.

n. a form of self-referential literature concerned with the art and devices of fiction itself

"Postmodern game playing and the juxtaposing of the supposedly real with the imaginary, are marked aspects of Auster's style; and there are those critics who dismiss him for what is usually termed metafiction, that is, fiction engaged in a dialogue with itself, a story which calls attention to the telling of the story."