The act of using wet naps as a wash cloth or loofah to "clean" yourself.
This act is typically done by hobos, people on road trips, or people at music festivals that couldn't afford a hotel and now must do a "hobo shower" in the porta-potty.
Guy 1: Bro, there's a naked dude in the bathroom cleaning himself with a wetnap!
Guy 2: aw dude he's taking a hobo shower...he's probably going to the phish concert that's in town.