When you take a shit in the shower and stomp it down the drain.
Eric couldn't use the public toilet, so he had to wait until he had some privacy in the shower and do some turdstomping.

You: We're gonna be late! Get ready man!
Me: It's cool, I'll be ready in 5 minutes if I turdstomp instead of sitting.
by MasculineGold March 8, 2012
Get the Turdstomping mug.