Gilded Gopher
A Gilded Gopher is when you defecate in an inappropriate manner, much like an upperdecker or sidecar, but you cover up the turd with spray-paint. The next unsuspecting user of the tub or toilet won't see the Gilded Gopher, because it's color matches the toilet or tub that it has been laid in.
That Gilded Gopher wasn't discovered until he filled the tub with bathwater, and by that time the whole room smelled like shit.