Top definition
1. a hardcore rock climber
or
2. someone that snorts chalk
def. 1. jim: Dude, look at cory dyno (shortened term for dynamic movement) that route!
harry: I know, he's such a chalk addict!

def. 2. Jim: WTF, did he just snort his chalk?!
Harry: yup... such a chalk addict...
by Bishaan February 22, 2009
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