For real?Shockwave wrote:I'm with Swerve, me no understand 4th wall either.
Assuming you aren't joking...
The fourth wall is a storytelling device. Imagine you're seeing a stage play, or a TV sitcom being filmed in a studio. You're going to see three walls--the back wall, and two side walls. A room or building normally has four walls, but in this case, the "fourth" wall is a big empty space--so the audience can look in and see the action. That's what the fourth wall is. The characters act and react as if there's actually a wall there--because for them, there is--but for the audience, it isn't there.
"Breaking the fourth wall" is a term that means the characters are acknowledging that there is no "fourth" wall in their house or room--that there is an audience watching their actions, and that they're aware that they're fictional characters in a work of fiction. A lot of 90s comedy cartoons (Animaniacs, et al) used to break the fourth wall a lot.
When Swerve says that "it must have happened off-panel," he's saying something that you or I might say about the plot. To the characters in the book, there are no panels--the panels are just a sequential representation of events that are "actually" happening to them. So when Swerve acknowledges the existence of comic panels, he's acknowledging that he's a character in a comic book. (Although Swerve seems to have some trouble coming to grips with the concept. Also, according to Brainstorm, they aren't "really" in a fictional story, the device is just...making them think they are? It's a little confusing but it's also really goofy so it's probably not meant to be taken seriously.)