Washing rocks (no, that's not a euphemism)
On Saturday I resolved to clean up the "plant bed"** at the front of the house where we removed the big ugly bushes (See entry: 12/15/2006 Clearing (yard) clutter).
When I was about half way into the project Marc came into the front yard from the back yard (he was working on his own project)
Marc: "Babe, what are you doing?"
Me (Chirping cheerfully): "Washing rocks!"
Marc: "Are you serious?"
Me: "Of course I'm serious! Come here and admire my ingenuity!"