The path of a large, densely packed, unwieldy turd as it slides down the side of a toilet bowl, often resulting in a stubborn, hard-to-clean streak/smear that won't disappear with the waters of a standard flush.
Call in the reinforcements, there's been a major turdslide in here.
by Charlie77 January 08, 2013
Slang term used when jokingly referring to the rectum.
I have to give my feces a ride on the turd slide.
by Stephen McDonnell February 10, 2006