When you're walking up or down stairs naked and have explosive diarrhea, thus creating a "shit waterfall."
"I got so drunk last night i got up to go to the bathroom in the middle of the night and instead went brown water rafting."
by frankiehustle June 23, 2015
by EOGUY July 08, 2015
When you eat a block of cheese on a Friday Night and follow it up the next morning with a Taco Bell breakfast burrito, and the solid chunk of shit in your ass rides the Taco Bell liquid wave out your butthole.
Ryan should have known better than to eat that taco bell.... his butt cheddar is brown water rafting out of him.
by Repressed Humor Issues February 22, 2025