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muscle in ur bumhole that acts like a railroad switch tie to direct the output
1.if u tickle my bumhole, i may poop, or fart
2.I was peeing and my sphincter caused me to flatulate
by kal August 09, 2004
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9
The muscles in your ass used in the process of taking a dump.
"Ross jumped over a barbed wire fence and tore his sphincter."
by Dave Butler May 31, 2006
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A ringlike muscle that normally maintains constriction of a body passage or orifice and that relaxes as required by normal physiological functioning.
I cant think of an examplefor the word sphincter.
by mastershake211 March 04, 2006
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Circular muscle in the anus; can be developed in gay anal sex receivers to clamp down on the penis and give pleasure to the giver, often making them ejaculate, depending on the skill of the receiver.
Peter Goesinya always like to fuck Chuck because Chuck's sphincter muscle had been well trained and was always used at just the right time.
by Richard Black April 12, 2005
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The butt muscle that is your poop hole.
A sixteen-year old girl woke up tied to a couch one morning. She did not know her surroundings. She heard someone from behind her walk up. She felt her butt being spread open by hands, and she felt something like a cucumber being inserted inside of her. It started pounding at her faster and faster. This virgin's sphincter felt nothing but pain as her rapist tore her with his cock. She looked up to see that she was being assfucked by an old man she didn't even recognize. The virgin started screaming from the pain as she was being pounded faster, and she was smacked on her right buttcheek. She stopped screaming, and found out she actually enjoyed it...
by DinoCoat May 18, 2017
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