Science fiction and fantasy fandom has its own slang or jargon, sometimes called "fanspeak" (the term has been in use since at least 1962).
Fanspeak is made up of acronyms, blended words, obscure in-jokes, and standard terms used in specific ways. Some terms used in fanspeak have spread to members of the Society for Creative Anachronism ("Scadians"), Renaissance Fair participants ("Rennies"), hacktivists, and internet gaming and chat fans, due to the social and contextual intersection between the communities. Examples of fanspeak used in these broader fannish communities include gafiate, a term meaning to drop out of SF related community activities, with the implication to Get A Life. The word is derived via the acronym for "get away from it all". A related term is fafiate, for "forced away from it all". The implication is that one would really rather still be involved in fandom, but circumstances make it impossible.
Two other acronyms commonly used in the community are FIAWOL (Fandom Is A Way Of Life) and its opposite FIJAGH (Fandom Is Just A Goddamned Hobby) to describe two ways of looking at the place of fandom in one's life.
Science-fiction fans often refer to themselves using the irregular plural "fen": man/men, fan/fen.