When a girl is naked and asleep under the covers and you get a flashlight (or a cell phone will do) and check out the goods. Usually done when you first sleep with someone, but can be done with girlfriends, friends, whatever.
A girl can perform this on a sleeping dude as well.
Laying there next to his hot one night stand, the perv grabs his cell phone and goes spelunking to get a closer look at her love clam.
by Crunchyness June 1, 2009
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Performing analingus (i.e. give a rimjob)
I'm hoping to go spelunking tonight!
by alternabear June 6, 2015
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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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the sound your dead lifeless body makes when it lands in the bottom of a large chasm in a pitch-black cave you thought was cool to check out
The medical examiner explained the body was found in the chasm of a cave no doubt the deceased was spelunking...poor bastard
by boglin78 August 24, 2004
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Having sexual intercourse with a girl who has a very wide and stretched out vagina. The vagina is very cave-like due to its constant past use. If you are considered to be spelunking, then the girl is a whore, and you will most likely contract a sexually transmitted disease.
I only had to pay five dollars to go spelunking in your mom
by pcdkchar November 23, 2010
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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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