Skerplunking 

To rummage or search for something important

I was skerplunking for pork rinds.

Skerplunking by M.Wood May 30, 2008

Skerplunking 

To fornicate repeatedly until unconcious.

Shall we go back to my place for some skerplunking.

Skerplunking by B_man March 19, 2003

Sperlunking 

It's called spelunking you dip shit.

When you add words to urban dictionary like sperlunking, you should make sure you got it spelled correctly moron.

Sperlunking by RV2PHX August 1, 2008

sperplunking 

Main Entry: sperplunking
Pronunciation: / ˈspərpləŋkiŋ /
Function: adverb
Etymology: Latin spaplunkis, from Greek
Date: 2007

1: to ejaculate until dropping abruptly A: plonking
2: to lose consciousness due to excessive masturbation

Spencer solved his chronic cases of insomnia and blue-balls with sperplunking.

sperplunking by shieh August 7, 2008

Kerplunking 

Where one or more people hang from a miscellaneous object.

Lucy and Adam were sick of planking, so instead decided to try out kerplunking.
They kerplunked from a tree branch.

Kerplunking by whitechocolateladybird July 20, 2011

sperlunking 

The act of exploring a cave, or caves for entertainment. Often referred to as "Cave Diving"

I am going sperlunking next week in some remote areas.

sperlunking by Philip Thrasher August 27, 2006

Skurplunking 

Adjective; most widely used to define the act of fucking a fat person. Normally used for men. For the female version see suffocating.

Guy: Dude i hear danny really likes to go skurplunking in his spare time.

Other guy: That must be suffocating!

Skurplunking by The skurplunnker October 3, 2010