That annoying line of ash left after incense, usually still in the same place it landed. This light gray line looks very similar to a turd because of its long, cylindrical form. Typically found in presence of hippies, marijuana, college kids, and head shops. Can be purchased at Earthbound across the nation.
-"Dude, what the hell is all that gray shit?"
-"It's on the counter, table, bedside table, bathroom counter, even in the car!"
-"Fucking ash turds. FML."