There was an example without the work title in Fan Works. If someone knows which fic was the troper talking about then add it back with the name.

• On the subject of MGS, there's an excellent fanfic where Otacon makes repeated references to fanfiction (its form, its trends, how it can Go Horribly Wrong), compares his situation to being "in a really whiny fanfiction" and, at the end of the story, remarks to Snake that "it seems like the author of a fanfic is trying to wind down."

Need help remembering: I can remember watching a scene from the last season of a sitcom (I want to say it's from the 90s) where two characters are sitting around quietly, and one of them says, "Well, it's the last season." The other looks at the first quizzically, but then the first clarifies that they're referring to something entirely different. It was a show with a solid Fourth Wall, so this was a bit of a surprise. But I can't remember which show it was.