Gamebook (also CYOA), a work of printed fiction that allows the reader to participate in the story. What does CYOA mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: CYOA. CYOA is an abbreviation of 'choose your own adventure. Choose your own adventure (often abbreviated to CYOA; also called choice- based IF) refers to a style of interactive fiction where the game is.