If I say “Pudding!” to my closest friends, they’ll crack up laughing because they know exactly what I mean. It’s an in-joke, a kind of secret language that defines us as a group. Widen that circle to my fandom friends and we truly have a language all our own. A language we use so commonly that we often forget that outsiders can’t figure out what we’re talking about. Then again, maybe that’s part of why we developed the language in the first place, so we can talk in front of the whole world but only those clued-in will know the truth.