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

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

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

Midwest Waterfall

When a mentally ill man who is in a hospital/psych ward, urinates all over a nurse who is attempting to help him.
Primarily attempted and seen within the Midwest region of the United States of America.

We got a code 205, a patient is attempting a Midwest Waterfall in the ER. Security backup required.

by Ed Flesh January 23, 2022

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

Dick Waterfall

We all have a little Dick Waterfall in us. Use in expression of pure passion and pride of present, future and past victories.

Game, set, match, I am Dick Waterfall.

by Erock8 January 27, 2009

Happy Waterfall

After a strenuous workout you have your workout partner take there sports bottle filled with cold water and give you an enema

colonoscopy after exercise happy waterfall

by DeerRun crew September 7, 2011