Sprinkling someone else's pillow with pubic hair that's been ground into dust or chopped up into tiny enough pieces that it will 1. not be easily seen or detected and 2. likely be inhaled, ingested and stuck to the face not unlike glitter.
Other names include Grinch Powder, Dream Glitter, The Salty Sandman, Fairy Dust, Pillow Peppering
"Grandma, I am so sorry to have to tell you this right now, with you being in the hospital and so ill.... Okay, remember that Christmas you gave me the 60" Vizio plasma TV when I very clearly wanted the Sony LED? Well, I jungle dusted your pillow the next time you came to stay with us. Whoo! Damn, I feel SO much better now that you know!! Bye gram-gram."
This is a condition similar to swamp ass; however, it refers more specifically to profusely sweating balls and taint rather than a sweaty ass crack. Also, the term swamp ass can easily be misconstrued to mean that you have crapped or sharted your pants.
Also, since the term grundle sounds so much like the character Grendel from the epic poem Beowulf, it makes the condition seem all the more beastly and woeful.
This term should probably only be applied to males.
After Denard and I moved my bed, dresser, entertainment center and lots of other stuff to my new third-floor apartment in 90 degree heat, we both had some pungent jungle grundle.
After playing basketball for two hours in the summer heat, my shorts and boxers were soaked, and I had some seriously smelly and wet jungle grundle.
Jungle folk heros are usually found in south america in the tropical and "jungle" regions, Usually wearing a tight purple outfit, riding a horse, and followed by a wolf. They fight evil and defend the three sacred skulls, using semi-automatic weapons forged in their jungle forges. Only one has been seen by modern day man. This event is seen in the movie "The Phantom."