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!
The opposite of entertainment; entertainment (usually TV) viewed whilst you're getting ready to leave your house. Is usually extremely low grade, such as inside edition.
Heidi: What's up?
Sierra: Not much, just enjoying some exitainment. I'll be there soon.