Top Definition
The act of exploring waterfalls
" I am going waterfalling", meaning one is going out and exploring waterfalls, a new word and phrase Hamiltonians use to explore their over 100 waterfalls in the City.
by Chris Ecklund July 14, 2008
2 more definitions
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.
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 30, 2010

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