by Marinemeatball November 30, 2004
by Butt Dart January 15, 2007
The muscle that holds your asshole shut. To call a person a sphincter muscle is very offensive. Your basically calling someone a asshole.
Man check out that woman over there yelling at those kids for fishing near her precious boat. She is a sphincter muscle and needs to stop talking shit.
by jimmybomm October 19, 2020
The art of going deep into and exploring a persons sphincter. Derived from the word spelunking which is another name used for exploring caves.
John: "Dude did you hear Brad was hitting on my girlfriend last night?"
Kevin: "Ya I heard about that, what a tool!"
John: "Na man he is a Sphincter Spelunker."
Kevin: "Ya I heard about that, what a tool!"
John: "Na man he is a Sphincter Spelunker."
by k3r0s1n3 July 31, 2009
by kiki/stick November 15, 2007
A mouse that digs away at the intestines of its host. Usually it materializes magically in ones ass. FEAR IT!
by Steve Mobeve November 13, 2004
The finger that is used to insert into a sphincter. Commonly this finger has a slight discoloration to it, similar to that of a carmel choc bar
I noticed one of Bob's fingers were slighly discolored, that must be his sphincter finger.
Paul loved Bob's sphincter finger and how it made him feel when it is inserted into his sphincter
Paul loved Bob's sphincter finger and how it made him feel when it is inserted into his sphincter
by Swine Doctor May 18, 2011