When you stretch a woman's asshole so that its as wide as a dinner plate, and then fill it with milk and fruit loops, or the cereal of your choice. The woman then tenses her asshole, making the milk and cereal squirt out like a fountain, hence the name.

Eating the cereal afterwards is optional.
Oi Divya, I totally did the magical fountain with Sarah yesterday! Ate the cereal afterwards aswell!
by arunandzedlikecock May 6, 2015
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When an overweight, 50 year old man lays naked on his stomach with diarrhea squirting out of his ass and some 20 year old whores on dog leashes drinking out of it. A decent percentage of the time you will find Hugh Hefner masturbating from a distance.
"Yo bitch-dick, you see that anal fountain. Sheryl be chuggin' down that shit!"
by Fagotory Climax November 23, 2016
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A Roman Fountan is when a girl sits on a toilet and takes a piss while performing the act of fellatio on a man.
"I can't believe Teddy got that nun to do a Roman Fountain."

"Yea dude she made it rain"

"Thats fucking gross"

"There is actually nothing more natural than a Roman Fountain."
by Gapino March 21, 2009
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The act of lying on ones back and being sick in a way that imitates a fountain effect
Person A: Did you see james last night?
Person B: Yeah he made a nasty chunder fountain on his face
by FPSG August 17, 2010
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The only correct way to write, and the superior writing instrument. All other writing instruments cower in fear under the superiority of fountain pens.
Roses are red, students pay rent, fountain pens are the superior writing instrument

Hey, is that a fountain pen? Why, yes it is. May I hold it? HELL NO BITCH IT'S MY FUCKING BABY!
by Splash3579 May 28, 2019
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A Missouri fountain usually occurs when an elderly man inserts anal beads up inside of his asshole to leave for six days. A presumably younger woman would rip the anal beads out of the elderly man's asshole while in a fetal, ass up position causing the fountain of shit to copulate within the woman's vagina.

The regional association is related to Missouri being famous for toasted ravioli.
Yooo! That homeless guy in the alley just did a Missouri fountain with that hooker!
by clitflicker47 January 18, 2021
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