Waterfall

A built-in waterfall is a slang term for a well-lubricated vagina. One that is very wet and moist. One that has been aroused and may be expecting company.

Her built-in waterfall was inviting

by Wittty1 November 6, 2023

waterfall

When you take a sip of someone's water without touching it with your mouth.

Ex. Hey can I waterfall, I finished my bottle.

Ex 2. I need a waterfall I'm dying of thirst.

by dead.girl November 6, 2023

waterfall grotto

A suave moniker for the bathroom, restroom, bog, loo, etc. Coined by wealthy industrialist, philanthropist, and, uh, bicyclist H. E. Pennypacker.

“Now, I assume there’s a waterfall grotto?” -Pennypacker

“No.” -Christine Nyhart

by Khronus August 6, 2024

Waterfall bot

A term for low effort posting karma-farming bots on reddit, who usually have joined the subreddits of r/waterfall and/or r/meirl. The term was (afaik) first seen in r/PeterExplainstheJoke when it was flooded with an influx of low effort "PEEETAH!" (And other variation) posts with memes that spawn the "Bait or Mental Retardartion"Meme

Post title in r/PeterExplainsTheJoke: PETAHHHHH

Comments: "Waterfall bot" "*an actual explanation*" "Bait or Mental Retardation, Call it"

by Hoahobecth April 3, 2024

Waterfall

More inferior definition of the word “air sip”.

Let me get an air sip of that. Okay, better than someone asking me “let me waterfall that”.

by Water Style April 24, 2024

Waterfall Brother

The culmination of water and brotherhood brought about by two Ark tribes of the Triple Waterfall, separated by maps, but not by spirit

We shall always build my brudda!-Snowfire o7

Don't hurt him Skar!, Legendoo7 is my waterfall brother! He's innocent!-Snowfire

by Snowfire77 July 1, 2025

Waterfall Kiss

When you finish in a bitches mouth then she holds it while she squirts in your mouth then you kiss.

I have this Bitch a waterfall kiss

by Tempest22 December 3, 2025