When you take a shit that is so clean on it's departure that even the slightest thought of attempting to wipe would be dishonorable to the clean getaway. The clean streak, even.
That one was the opposite of a dirty dog shit. I just faith wiped that one instead.
A game with friends; you use the bathroom for a number 2. You are allowed to use as much toot paper as you like the only rule is you are only allowed to wipe once!.