What she means:
Do each of the Animaniacs cartoons exist as cartoons in the Animaniacs world or do they exist as the reality of the world? We know the Warner Brothers (and sister Dot) interact with the other characters, but is this as cartoons or in their world? Are Pinky and the Brain pretending to try to take over the world in a cartoon or are they trying to take over the world that the Warners live in? We see that the Warners, Elmyra, and Buttons and Mindy have interacted in at least one scene in the Warners' world and they have interacted several times with Skippy and Slappy, so are the cartoons actually real or are they cartoons within cartoons? What about the times when they are not completely in character, such as the orchestra scene?
[Description: A super easy and way amusing family cosplay. This mom and her son, and daughter dress as Yakko, Wacko, and Dot from The Animainiacs. It’s simple with black pants and stockings, mixed with basic tees, facepaint, and clown noses. Absolutely perfect (and I hope Mom treated her kids to the amazingness that was that show during the costuming process!)]