by Twisted System™ August 12, 2006

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 9, 2003

One who makes a hobby of exploring and studying the cave that is surrounded by the annular muscle (i.e., the ass)and able to contract or close a bodily opening. A poostabber. A male homosexual/anal invader.
by Carter Jordan September 27, 2004

by Hangman Angman January 29, 2012

by jubjubmacrub May 22, 2013
