Cube slave 1: "Dude, I'm soooo damnbored..."
Cube slave 2: "You should take up facial spelunking."
Cube slave 1: "Man, I'm so past that, I've been booger bombing you for hours..."
The act of kickin it in your room by yourself. All men need to get away now and then, telling your friends your gonna be mancave spelunking is a way for a guy to get away with being anti-social.
Friend 1: what you gonna do now?
Friend 2: ima go mancave spelunking for a while, see where it takes me...
The expansive exploration of the anal cavity taken to an extent far beyond typical examination. In order to be considered an ass spelunking specific symptoms must be present. Extreme pain, euphoria, nausea, loose stool, and loss of bowel control are typical. In order to be an ass spelunker one must have partaken in at least 75% of the anal event and have documented the such thoroughly. Any accomplice in the even is referred to as the secondary spelunker.
Many times ass spelunking is used in reference to homosexual acts, however, ass spelunking can also refer to those of hetero origin.