The act of opening and expanding the anal cavity of ones partner and then proceeding, with cave diving gear (ie: Carabiner, ropes, headlamps, etc), and entering the damp ridged caves of your consenting adult. Occasionally returning to the surface for air.
by RuffleshaveRidges November 22, 2015
this word comes from ass meaning butt and spelunker meaning someone who explores caves so ass spelunker means someone who explores the butt hole and its surrounding area
by the_one_and_only June 09, 2003
Originally termed in the movie "South Park: Bigger, Longer, and Uncut." Commonly mis-spelled as ass beehonker, this term refers to anal intercourse between two men. Splunking itself is decending into a deep cave, which is fitting.
by The Masticator February 28, 2006
Robert is very experienced at ass-spelunking
by Bob February 12, 2003
by Omar Enrique Torres May 24, 2006
Yo, Mike, when you get done ass-spelunking with Larry would you mind helping me get some work done or would you rather give him a hot carl.
by g spot May 13, 2006