The result of having turned off the water supply valve to the toilet then flushed to ensure the bowl is "dry", only to drop a deuce and close the lid, leaving it for your unsuspecting friend/enemy/mother to find.
John wrote all over me last night when I passed out drunk, so I dry stacked the toilet before I left his house.
To wear regular clothes in lieu of a spandex costume and cape. Derived from the HanoverSuperman of Hanover, PA (Scotty Bolton), who regularly goes out on the town in a Superman costume and/or Superman cape. Examples of his wardrobe can be found at myspace.com/hanoversuperman. On the rare occasion that he is seen in regular clothes, he is said to be dressed as Clark Kent (in disguise from his Superman persona).
"Hey look there's Scotty. He doesn't have the suit on tonight, he must be Clarkin' it!"