The principle stating that people who say that they are "soo drunk right not" are usually fairly sober, while people who say they are "not that drunk" are usually highly intoxicated.
Max: Dude, I swear I'm not that drunk.
Sam: You just pissed in our trashcan asshole. I think you're pretty fucked up right now.
Kyle: Yeah he's gone. Perfect example of the Inverse Intoxication Principle.