I love the term Wizard Battles. It refers to arguing in an improv scene, and evokes the crazy stuff that's made up in order to justify one player's position. I came across it recently in a blog post discussing the many problems with arguments in a scene. It also discussed an effective way of getting out of that situation (lose the argument!) The post has a few insider terms that aren't defined, but overall the post is pretty good. And I'm going to start using the term Wizard Battles