When one has to use the toilet and has extremely liquified diarrhea, to the point where all the liquid shit flows out of ones anus, as a waterfall. This action usually occurs after one has had particularly bad Mexican food, or just eats very unhealthily

Person 1: “how was your day, bro?”
Person 2: “ awful. It was going pretty good, but when I went to take a shit, I had a Mexican waterfall instead! I haven’t been able to walk normally all day after that!”

Mexican waterfall by The crap meister August 10, 2018

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Watermelon waterfall

When a girl is on her period riding you and she stands up to squirt and rubs everything all at once

Hey yo Billy Nancy gove me the good old Watermelon Waterfall last night

Watermelon waterfall by MixalotNati July 24, 2019

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african waterfall

the process of drinking from a water bottle, not touching the bottle with your lips, but the bottle is by the groin area of another man

Did you see Brendan getting an African Waterfall from Eli? He must have been really dehydrated!

african waterfall by yellow_gambino February 19, 2020

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Chocolate Waterfall

When you cream pie in someone’s ass and they immediately shit themselves, causing both shit and cum to waterfall out.

Guy1: did you eat chocolate in my bed again?

Guy2: No, I did a chocolate waterfall on my girl last night and didn’t wanna fuck to my mattress.

Guy1: what the fuck

Chocolate Waterfall by Vixen Vixen Emer July 6, 2019

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