A kind of contentious reasoning that seeks to appear victorious in disputation, without regard for truth. It is distinguished from sophistic because it is not concerned with appearing wise, only with seeming victorious in disputation.
The following are some well-known eristic arguments taken from Aristotle's On Sophistical Refutations.
Eristic argument 1. There is sight of what is seen. The pillar is seen. Therefore, the pillar has sight.
Eristic argument 2. Whatever you profess-to-be, that you profess-to-be. You profess a stone to-be. Therefore, you profess-to-be a stone.
Exitiety is a play on the word anxiety. Best described as the stress you feel when going through the exit doors of a large department store - hoping that the teller has properly removed all security material from your purchase and therefore NOT setting off the alarm, causing a scene.
Dave: Dude, you got that movie at a great price... hey, why do you look ill?
Mike: Gee, I hope I don't set the door alarms off as we leave - I hate that!
Dave: You suffer from the worst case of exitiety I know!