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1.
Adjective form of the noun choss. A rock climbing term which describes a route or problem as dangerous because of loose rock.
I wanted to climb a project in the Druid Stones but the perfect line turned out to be too chossy to climb.
by climberguy March 01, 2009
 
2.
An adjective to describe poor quality rock that isn't usable for rock-climbing due to crumbling when given pressure.
Charles R. can't climb on chossy rock due to it's crumbling nature.
by AndBingowashisnameo February 05, 2010
 
3.
Another word for "great" (From the UK)
An amazing set of waterfalls. Pretty chossy I'm told.
by Doctor Livingstone January 07, 2006