other forms: spelunking, spelunked, spelunks(v), spelunker (n)

1. v.;the exploration of natural caves
2. v.;the exploration of a man's anus by either: A. himself, B. a female sex partner., or C. male sex partner.
1. Bat researchers usually spelunk many caves to find their information.

2. while watching porn: "Eww, did you see her slip her finger into his butt? She's totally into spelunking."
by angel December 23, 2004
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(By analogy to exploring caves/other dark places)
To engage in casual internet stalking, usually out of curiousity rather than for any sinister purpose.
After a bit of spelunking on message boards, I found out that girl I was flirting with on MSN was actually a 40 year old guy from Indianapolis!
by Cayenne August 2, 2005
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1)The act of fucking one in one of many positions 2)Hitting someone 3)Word to replaced many words.
"Dude, last night I spelunked Mac in the butt."
by A.R. McCumindabutt September 10, 2003
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the act of getting farted on while giving someone anal...doesnt apply to homos
by Jesus12 March 28, 2008
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The origin of all the other definitions for spelunking

noun: The act of exploring a cave
1. One popular activity to do out in the wilderness is go spelunking
by Anonymous April 26, 2004
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One who enjoys exploring cavernous regions and rustic encampments.
Joey is such a spelunker - kids fuckin up in tha caverns 24/7
by Jimmy Williams April 30, 2003
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the act of exploring for the missing condom after deep penetration
The next morning, "Oh yeah, we never found it. Better get out the head lamp so we can go spelunking."
by Miss Millie March 1, 2004
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