Repeated cave exploration until rectal bleeding occurs. Usually accompanied by alcohol.
After a bit of Sarles Spelunking, my mates and I could hardly sit on our bums.
by Anonymous September 30, 2003
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Verb: The act of spreading the butt cheeks, and diving into the butt hole tongue first.
Hooked up with a chick last night, and she loved it when I went butt spelunking.

Dude, I went butt spelunking for the first time...bitch needed to clean out dat canyon.
by Stoop Fontain March 14, 2014
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The activity of diving under a desk in order to fix a computer problem.
Jones was complaining about his keyboard not working so I had to go desk spelunking, turns out the USB cable was unplugged.
by OrigamiFrog August 16, 2010
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An individual who's head is up their ass so often, and to such an extensive degree that they may need climbing gear to find their way out
"That asshat has officially become an ass-spelunker"
by T-nig February 20, 2015
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A severe type of cunnilingus (oral sex on a woman).

Deep tongue spelunking usually involves trying to get ones tongue as far into the vaginal cavity as possible.
This is usually done by tilting ones head back and almost inserting the lower jaw/chin.

Use with caution "DTS" has been known to cause severe neck injuries and may also lead to trout mouth if the receiver has not been properly identified.
"This girl was so hot I went deep tongue spelunking for WAY too long now I have to wear this neck-brace for a week."
by Cracka61 December 1, 2006
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The act of receiving fellatio while taking a dump with your legs closed and flushing the toilet after to receive Poseidon’s Kiss.
Sick night dude, Amber and I went spelunking!
by NeverHaveIEverGone4 September 7, 2022
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When you sneeze and fart at the same time
I couldn't stop spelunking after eating taco bell yesterday
by Whatshisface80 May 4, 2023
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