A dance which involves lingering around a dance floor slack jawed with eyes half open and forming your hands into pistols. The pistol hands are rocked back and forth in a rhythmic motion while the feet shuffle slightly. Occasionally one pistol is inserted into a pocket and drawn out then placed back in repeatedly. This dance is most common after one is highly intoxicated. It is not uncommon for an observer to mistake the dance for a seizure, as when done properly the dance is totally out of sync with the music.
After he got really petesched at the bar he did the pistol creeper for about an hour, and eventually ended up dancing with a dude.