Top Definition
One who makes a hobby of exploring and studying the cave that is surrounded by the annular muscle (i.e., the ass)and able to contract or close a bodily opening. A poostabber. A male homosexual/anal invader.
My friend Paul is a sphincter spelunker, thus he is constantly washing feces off his weener.
by Carter Jordan September 27, 2004
10 Words related to sphincter spelunker
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."
#fag #tool #loser #jerk #asshole
by k3r0s1n3 July 31, 2009
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