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1.
When you injure yourself while geocaching in a precarious location.
Whendi went geocrashing down a hill trying to find a cache in Portland, in white pants.
by corman84 February 19, 2013
 
2.
The use of GPS technology and GPS co-ordinates to identify a suitable location for an overnight stay whilst backpacking or on a geocaching trail.
George and Jane enjoyed Geocrashing the farmer's hayloft whilst out on a cache hunt.
by DanEskdale February 24, 2013