Skipping Rocks

When you take a dump that feels like a good one but instead shoot out tiny pebbles that are unsatisfactory and usually splash up and leave your bottom wet. A benefit of this is that you will most likely be left with a 'rock bottom' that is a no mess no fuss clean up with little to no toilet paper usage.

I.e. : I was gonna lay some cable but instead wound up skipping rocks when I got home, but at least it was a one wiper.