To jump dirt. A style of biking that consists of jumping tall jumps usually made of dirt and clay. They will often have a gap that must be cleared. Dirt jumping also includes many different tricks, and is usually done one a Dirt jumping bike. Lightweight, with fairly flat tires, and very light.
Damn, lets go dirt jumping and huck some huge ass dirt jumps!
by Tyleronie June 18, 2008

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