It is a way of releasing toxins from your body via shitting such loose materials, known as diarrhea, at such a force it is like a waterfall
by Pickledicklerickle January 1, 2019

A suave moniker for the bathroom, restroom, bog, loo, etc. Coined by wealthy industrialist, philanthropist, and, uh, bicyclist H. E. Pennypacker.
by Khronus August 6, 2024

A cute coloquialism for diarrhea, making reference the the "chocolate waterfall" featured in the film "Willie Wonka and the Chocolate Factory"
by Cyc4015 November 24, 2017

Chad was so keen to get bent just as fast as humanly possible, he wouldn't even put down the beer to take a leak. Fellow party guests watched in awe as he demonstrated more than a dozen Human Waterfalls before finishing his case of beer.
by spacehead74 September 14, 2020

"Oh my god I am literally having the worst cramp of my life right now"
"Is it the unwanted monthly subscription to the waterfalls of hell again?"
"Is it the unwanted monthly subscription to the waterfalls of hell again?"
by Ilikeoreosandpussyyyy May 11, 2022

It's when you line a grandmother up with her daughter under her and the granddaughter under the mom and pour champagne into her pussy and let it run down the daughter and drink it out of the granddaughter pussy
Oh my God were you there the other day when Becky and her mom and grandmother did in Alabama champagne waterfall. It was so fucking hot
by Stabby knives July 5, 2025

An innuendo regarding getting a woman wet.
Southern refers to how the vagina is down below (as South is down). Waterfall refers to how wet she gets.
Southern refers to how the vagina is down below (as South is down). Waterfall refers to how wet she gets.
by AgreeableRecord August 6, 2024
