A viral infestation of asshole behavior. Extremely ubiquitous. No known cure but sure working on one.
Jeff was suffering from a severe case of sphincteritis
by Dr. AntiSphincter May 17, 2010
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That round orifice that comes out of your anus and helps you take a dump. The entrance to the asshole.
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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What people sometmes scream while attacking their friends from behind, shoving their fingers in their friends buttholes.
dude, i totally sphinctered eoin to kingdom-come
by The Numba One Solja October 29, 2006
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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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