by vdw17 February 12, 2019

The result of a person knowing everything about you, without you knowing anything about this person, probably because a friend of yours has told this person your whole life.
Jessica: "Hey George, I know you like furry porn with old ladies."
George: "HOW?! Is this the Fountain Effect? Not again!"
George: "HOW?! Is this the Fountain Effect? Not again!"
by Silience March 16, 2021

It seems like every time John takes a leak, he does fountain peeing. I have noticed that whenever he comes out of the washroom, I go in the washroom afterwards and see pee on the toilet seat as well as on the floor.
by funny fellas January 16, 2014

Noun; When referring to when you have only drank out of a specific bottle either by fountain drinking(Drinking by pouring the drink into your mouth without touching your lips to the bottle) or by using a glass.
by DicBot42162378 May 21, 2008

by sbd with sth November 9, 2017

When ones partner is close to climax the man pulls out a 12 gauge shotgun and fires in into the back of their partners head causing the fruit punch fountain
by Gaybuteggs January 17, 2021

friend 1: i have mentos in my prison wallet and am proceeding to pour coke into my rectal cavity
friend 2: oh no your anus is exploding with coke and a nice menty smell creating a bum fountain
friend 2: oh no your anus is exploding with coke and a nice menty smell creating a bum fountain
by bumfountain123 December 2, 2019
