A state in which one hates another person so much that their internal organs feel as if in purgatory upon seeing said person.
Jeff: Hey man, why are you so red?
Steve: Oh, i just saw Janet. I'm in a state of total Sphincter Hell right now.
Jeff: Wow man, you hate her that much?
Steve: It's hard not to.
by Azræl October 13, 2013
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The metaphorical controller of speech which stops you enunciating every thought you ever have.
Melissa's down fall was a loose think sphincter as she told the boss he was putting on weight...
by Marty McGonagle April 12, 2016
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A highly versatile muscle group responsible for many vital functions in the body.

Found throughout the cardiovascular and digestion system, it has the ability to open or contract control the movement of liquids or solids throughout your bodily systems.

It can also refer to a Bayley.

Se also: Moomoos
by Moomoosa2000 October 29, 2021
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When your massively dense turd splashes the toilet water and proceeds to wetten your ass, in the end making it easier to scrub your cheeks.
"Did you drop something in the tub Richard?" "No, I just had a sphincter splash."
by SheistyAssCrack September 2, 2017
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A hairy moment, such as passing silent windduring sex and praying it’s not an SBD (silent-but-deadly)
“Really needed a poo at work so I farted and almost touched cloth, bit of a sphincter twitcher
by Squickly July 4, 2018
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When your asshole contracts to stop shit from releasing.
Adam: Man, I gotta shit!
Josh: Use your sphincter grip Until you get to the toilet!
by Professional white Boy September 8, 2021
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