Brown waterfall

Pooping while orgasming at the same time.

Would you like a brown waterfall?

by Dr machine September 06, 2017

eye waterfall

Eye waterfall is referring to 'crying so hard you have a waterfall coming down your eyeballs'.

I have depression, so every night, I cry, then when I cry harder, I realize that I am having an eye waterfall.

by xXGaLaXyXx July 24, 2018

Cascading Waterfall

To aim one's penis just right so at the point of ejaculation the stream of sperm flies overhead, narrowly missing the face in a matrix like fashion. Resembling a waterfall.

"Last night I was masterbating and totally shot a cascading waterfall"

by dccougar23 September 22, 2011

sandy waterfall

When you make a girl cum at the beach

Guy 1: Yeah, we were at the beach and I gave her a sandy waterfall

by Nerd_With_A_Turban April 21, 2016

rock waterfall

Urinating on one's own scrotum, often by accident.

Steve's pants were too tight, and it was very hot out. He had to keep drinking water, so inevitably he wound up having to pee. He entered a McDonald's, and when he got into the bathroom, he realized he also needed to poop. So he sat down on the toilet, and as he let out his stream of urine, he did not yet realize the degree to which sweat had glued his scrotum to his shaft, and received a rock waterfall.

by Eric Jean August 17, 2017

Muddy Waterfall

When one urinates through the legs of another person who is defecating.

Pisser: "Bro, I really gotta piss!"

Pooper: "Dude... I'm taking a shit"

Pisser: "Whatever bro, lets muddy waterfall!"

by fuzzedhead April 30, 2011

Crotch WaterFall

The Act of rubbing sexual organs together while under the shower head

Baby lets go do the "crotch waterfall" thing

by sap302 March 01, 2011