The act of falling forward; Being so drunk that you lack the coordination for even the most simple motor skills such as standing or sitting; Someone so drunk they keep falling over.
Steve: Dam son, you were drunk as shit last night!! You couldn't even sit up straight on the barstool, much less walk to the car. How many times did you fall over?
Joe: No joke, I must have hit my face on the floor three or four times. I had a nasty case of proptosis!