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
Get the spelunking mug.
Lifting weights with ones penis.
I am a world champion spelunker, I can lift 287 pounds with my penis, I am amazing at spelunking.
by greenwhite55 September 10, 2011
Get the spelunking mug.
To lift things (typically heavy things) with ones dick
Tom went spelunking will Jill yesterday, he has some very strong parts
by Iamtheother September 11, 2011
Get the spelunking mug.
Barry "I just caught Johnny spelunking, man, he was knuckle deep."
by Neo June 15, 2003
Get the spelunking mug.
rifling through something in order to find something far greater hidden at the bottom.

can be a sexual reference...

enid spelunks jovially each night...

he was spelunking at great speed through the cereal packet to find the toy at the bottom.

he spelunked through the garbage for the cheese he left there.
by aneuryism March 22, 2007
Get the spelunking mug.
The act of spelunking is mysterious. Many define it as such: a man does a little booty diving followed by immediate removal of the penis and placement back into the girls (now warm) poon.
Luke called Allison on Friday, enticing her with the promise of a hot night of spelunking.
by onecrazymofucka March 1, 2006
Get the spelunking mug.
A common form of drug use, popular among high school and college students. The experience begins with intense and continuous laughter, followed by loss of awareness, and finally delusions.
See drugs, hyphy
Boy: Man I am so spelunking right now.
Girl: You think you're spelunking, I am the one who is spelunking.
by ILikeFeet March 1, 2007
Get the spelunking mug.