Noun - The act of getting a blowjob and the girl/guy throws up on your dick.
Verb - To give someone a chunky waterfall (see above)
Verb - To give someone a chunky waterfall (see above)
"Hey Trent, I'm so hungover right now. Don't make me blow you or I might give you a chunky waterfall."
by schoolglue1234 September 6, 2014

A Russian Waterfall is the situation when you gotta pee and your girl is peeing you just pee between her legs as she is sitting and peeing as well
by Tamey January 10, 2012

by SKM3 November 30, 2010

A buzzword agile methodology training sold to companies by process consultants as training that won't actually make you any more efficient. Waterfall development being in opposition to agile development.
We hired some consultants to teach us how to synergize and go to market with hockey stick growth, but they just sold us a molasses waterfall and now I'm laid off.
by boi_squeeze April 21, 2017

The egyptian waterfall is a sex act/prank/home defense system where a man ejaculates down a flight of stairs. This causes the semen to slowly cascade down the steps like it were a waterfall.
Tom: Hey some guy pulled an egyptian waterfall at the frat house last night. It made the stairs all slippery!
by Tomathy Walkens May 30, 2018

Shit got so freaky last night I gave her a diamond waterfall and soaked the bed. She looked like a thousand dollars after that.
by Yosuke8-bit June 21, 2021

A constant flow of rainwater caused by overflowing spouting and/or guttering.
most commonly seen in schools and blocked gutters.
most commonly seen in schools and blocked gutters.
-"What a skody school"
-"I know their such a beautiful freak of nature"
-"what are?"
-"urban waterfalls"
-"I know their such a beautiful freak of nature"
-"what are?"
-"urban waterfalls"
by SAMTHEMAN177 June 16, 2010
