Originally Posted by MoonCat
No, not the concept, but the term I've never heard anywhere else. Ever.
TV Tropes never pretended to be inventing
anything, only repertorying already-existing tropes. Including for tropes name; if there's a widely-known term used, it will get preference. "Jumping the Shark", "Hanging a Lampshade", "Breaking the Fourth Wall"... all those are descriptive terms used in fiction for a while already.
PS: In your case, please consult "Older Than They Think