When a woman drinks a beer after eating a Japanese hibachi meal, then stands over her man bottomless and pisses all over him.
I need to wash up, because my girl just gave me a Kentucky waterfall and I smell like urine.
Eye waterfall is referring to 'crying so hard you have a waterfall coming down your eyeballs'.
I have depression, so every night, I cry, then when I cry harder, I realize that I am having an eye waterfall.
Pooping while orgasming at the same time.
Would you like a brown waterfall?
When you make a girl cum at the beach
Guy 1: Yeah, we were at the beach and I gave her a sandy waterfall
To aim one's penis just right so at the point of ejaculation the stream of sperm flies overhead, narrowly missing the face in a matrix like fashion. Resembling a waterfall.
"Last night I was masterbating and totally shot a cascading waterfall"
The Act of rubbing sexual organs together while under the shower head
Baby lets go do the "crotch waterfall" thing
The act of filling up a water truck with elephant semen and having it drive in front and spray the semen all over the road coating everyone and everything in sight. Then having another heavy truck drive behind it splashing all puddles of semen to coat unsuspecting pedestrians and cars alike.
So me and my fellow construction workers loaded up a water truck to perform an elephante waterfall. We are still pending court chargers.