Top Definition
The hobby or practice of exploring the caverns of the face.

Often practiced in tandem with booger bombing.
Cube slave 1: "Dude, I'm soooo damn bored..."
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..."
by liveMike June 19, 2008

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