Definitions by Dirt Bag Dude

Bouldering 

A type of Rock Climbing that started when a group of drunk guys camping bet each other they couldn't get on top of a boulder.

Jerry: Damn it John! You kicked the hackey sack on top of that boulder!... I bet you can't get it.

John: I bet you I can!

...and Bouldering was born.

Bouldering by Dirt Bag Dude February 8, 2013