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
to catch your female partner's cum in your mouth when she squirts and then stream or spit it back onto her or into her mouth
Have you ever squirted in a man's face and then watched him while he is waterfalling onto your tits? I have.
by S'moken July 31, 2010
to drink from somebody else's soda or pop by holding the can high, over your mouth and slanting it so that the drink falls right into your mouth without having you touch the can with your mouth; which would be unhygenic
by Brizzy Izzy August 7, 2011
To blend any two liquids (Mentos if desired) together and pour the mixture down your girlfriend's vagina and/or on her face. The mixture can be any two liquids, so fuck around with the Diet Coke.
by Yopmail User February 27, 2023
When someone asks for a drink of something you already put your lips on, the pour it in to their mouth, which looks like a waterfall.
by Yu Lik Dik August 18, 2011
When a woman squats over the mans face before squirting and lets her holy refreshing water run into his mouth. Have you tasted the spring of life yet?
by badgermemonday July 7, 2013
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 4, 2004