by Pizzasexymerch October 30, 2016
simialr to a lung, except water is used instead of a bag. fill bottle with water, puncture near the bottom and let gravity do the rest.
by da ging June 06, 2003
A woman holds open her ass, and her partner pisses inside. After they're done, the woman stands over the partner and pisses in their mouth from her ass. Thus creating a waterfall.
by P1ssMonkey March 05, 2020
by JAson April 19, 2005
A device that can make you fly. More fun than attending lectures, but feels like your inhaling a molotov cocktail.
Our 18 litre lung was out of commission so Steve constructed a waterfall out of an old cement mixer.
by Our-Man-In-Nantucket January 29, 2004
when a girl is passed out at a party you drag her into the laundry room, then you pull down your pants stand over her face then pour cold water on her face then she will sit up quickly, right into your ballsack. her ice cold face will give the sensation of a waterfall.
Waterfalls are so refreshing
by Dylan Walsh November 20, 2006
When you hear a guy pissing in a toilet while he's standing up (Which makes a "waterfall" sound). When you DO hear a waterfall, scream "WATERFALL!!!"
by ROFLCOPTER PERSON FTW October 09, 2011