ass spelunker 

1) One who engages in the practice of exploring the anus and rectal passage of another, just as a spelunker enjoys exploring dark, dank, underground passages.
2) A person who acts as though he might enjoy the practice of ass spelunking.

1) Man that guy is an ass spelunker. I think I saw him in the Gay Pride Parade last week.

2) Goddamnit Jimmy, stop prancing around like a fucking ass spelunker.

ass spelunker by Ragefist November 17, 2002

splunky 

Weird and messed up; kinda crazy and cuckoo; you are considered a splunk if you are splunky

Person 1: wow that bike is pretty weird and messed up
Person 2: yeah, it’s kinda splunky

splunky by Sofa king brilliant October 25, 2019

shelunking 

Similar to spelunking (cave exploration). Exploring the dark crevices of a woman’s nether regions.

Dude I was shelunking on Broomhilda last night and I think I sprained my tongue.

shelunking by The turd abibes August 27, 2021

Spelunkavag 

a cavernous vagina with an acoustic echo resultant from numerous romantic escapades.

With as much "fun" as Sara had on spring break, i'm sure her spelunkavag could use a breather.

Spelunkavag by Munasty September 13, 2010

colon spelunking 

The act of anal sex.

What that girl needs is a good colon spelunking.

colon spelunking by C.S. Lewis Jr. September 4, 2004

Wet spelunker 

Another name for a dick/cock. In particular after having had sex in a wet pussy or ass.

Derived from the concept of exploring a dark cave which is usually very wet as can be seen with a pussy and ass after lube is applied.

The wet spelunker bulging in Davids pants was making it hard for Taylor to concentrate.

Wet spelunker by Kittyslyfox December 2, 2020

Speflunking 

Sex act based on a hit song from Nordic Death Metal Band "Zebra Death Fart." The act of cunnilingus or fellatio on a partner with severe diarrhea.

After a large supper, Zeus turned to Leta and asked "Would you like some speflunking tonight?"

Speflunking by DragonToeJoe January 16, 2021