The debate about how to properly conduct a debate, which inevitably becomes a more
heated and pedantic debate than the original one. It's when the argument shifts from the topic (e.
g., "Is pizza a sandwich?") to the rules of engagement ("You'
re using an ad hominem!", "No, that's a tu quoque!"). It's the rhetorical equivalent of
two lawyers arguing over courtroom procedure while the jury dies of old
age. The goal is no longer to persuade, but to win by declaring the other person's entire mode of discussion invalid.
Example: "We started arguing about rent control, but within minutes we were in a full
meta-debate about logical fallacies, burden of proof, and the
definition of 'evidence.' Two hours later, we'd solved
nothing about housing but were deeply angry about the proper use of the Socratic method."