Urban Waterfall

A constant flow of rainwater caused by overflowing spouting and/or guttering.

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"

by SAMTHEMAN177 June 16, 2010

Upward Waterfall

The act of eating her out while she is upside down until she squirts.

Bob and Cindy upward waterfall last night.

by SKM3 November 30, 2010

Milky Waterfall

When you are about to cum, you pinch your foreskin and hold it, and and then let go when you done cuming, it should just pour out.

when you look at a girl and milky waterfall on her face

by jeessis12312312 June 13, 2011

undercover waterfall

The act of urinating on your partner while they are asleep.

While Todd was sleeping in the dead of the night, matt snuck in and gave him an undercover waterfall.

by Gman692 April 2, 2017

molasses waterfall

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

Belgian waterfall

Chundering up large amounts of Stella Artois (a Belgian beer), to give the impression of a waterfall

"Ahhhhh mate, Jake has had way too much Stella, look at that Belgian Waterfall

by jakestar99 June 3, 2017

Egyptian Waterfall

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