Tracing its origins to high school kids in Las Vegas, Nevada, the act of drinking from a friend's soda or water without your lips actually touching the bottle. Share your drink, not your germs.
by DJ Spin Master Citrus September 04, 2004
by Alasyia November 12, 2006
The visual effect created when a person urinates on your forehead which resembles standing behind a waterfall.
by Dr. Hans Francois April 18, 2010
This is when a group of people begin drinking their alcoholic beverage of choice, and the 2nd person in line doesn't stop drinking until the first person stops and the 3rd doesn't stop until the 2nd stops etc.
by KWhit10 September 28, 2005
ex: Jake: Hey dude, did you have fun with Jaime last night.
Nate: Hell yeah dude! She waterfalled
Jake: Sweet man! I wish my girl would have waterfalled.
Nate: Hell yeah dude! She waterfalled
Jake: Sweet man! I wish my girl would have waterfalled.
by foxdirtbikeracer4lyfe February 28, 2011
The action of taking a drink out of a bottle without actually touching it with your mouth, usually to avoid spittle left over, or "germs."
Jason: Dude, why are you drinking my soda? That's disgusting, I don't want your germs!
Dave: Hey, don't worry, I'm waterfalling.
Dave: Hey, don't worry, I'm waterfalling.
by xJulia June 22, 2006
A smoking device similar to a gravity bong. It involves taking a 20oz bottle and burning a small hole at the bottom. Then attaching a bowl-piece to the cap. One fills the bottle with water (using a thumb to plug the hole), attaches the cap/bowl-piece, lights the substance, and releases their thumb. The water uses gravity to keep the substance lit.
by Andy Holman October 12, 2005