That turd we've ALL had where you hear it hit the water, Hell, you even feel the splash-back but when you look a second later, it's no where to be seen - as though it flushed itself, yet flushing has yet to occur.
“Dude, you left a floater in the toilet and there’s no toilet paper with it... wtf?!” “Bitch, that was such a perfect shit, it didn’t need a wipe, it was a clean get away!”