A super long turd that disappears into the unknown abyss of the toilet drain while the other end is still at the surface. otherwise known as anaconda.
I ate so much last night I laid a spelunker this morning.
by turdferguson, jr. December 4, 2015
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When your friend or doctor removes a turd from your asshole with their hand.
It happened to my buddy Eric once.

What happened?

His doctor went spelunking.
by JohnFart00 October 18, 2021
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A term used to express feelings of disbelief and annoyance. Commonly used when something very surprising yet unhelpful happens.
"are you Spelunkering me?"
by Pablo Parmesan August 11, 2022
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A sexual act. The act of shaving one's cranium, applying copious amounts of lubrication, and attempting to insert it into the female vagina.
Doctor: "You have whiplash. Did you recently suffer any trauma to your neck or head?"

Patient: "Yes - I was spelunking my girlfriend when the phone rang and startled her."
by thenannymoh September 7, 2003
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1) One who explores caves
2) One who enjoys giving oral sex to women
Peter is such an obsessed spelunker.
by Narog August 20, 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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When having sexual intercourse with a virgin or a girl that has not banged anyone that you know
When your at a party talking to your friends and a hot chick walks over that you want to have sex with. Use the term spelunking to make it seem like your not a perve. Just say hey man I want to go spelunking
by One crazy week September 12, 2011
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