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
Get the waterfallingmug. 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
Get the waterfallingmug. 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
Get the waterfallmug. 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 26, 2023
Get the waterfallmug. 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 22, 2011
Get the Waterfall itmug. 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 August 8, 2013
Get the The Waterfallmug. 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
Get the Waterfallmug.