Shouted, (usually while interrupting someone mid-sentence), when you firmly believe you are right, period, regardless if you really are or not, and have run out of ways to argue your point. Also said as a means to shut the preverbial door in the other person's stupid face.
Whatthefuckeverville is a town you don’t care about. It sucks. The people are boring. The town isn’t known for dick and it doesn’t even have a hardware store. You tell someone annoying you to go to this place.