"Chronic" is one of those slang words that has different meanings in different social groups. This is common for slang words because there is no fixed, official definition for them that you can look up in any dictionary. Around here it is just used to describe good weed, i.e. the opposite of shwag.

http://www.urbandictionary.com/defin...rm=chronic&r=f
ermitonto Reviewed by ermitonto on . sick of it im sick of people callin weed chronic, chronic is not weed, chronic is weed with crack glazed or sprinkled over it, and its a trip! so stop calling weed "chronic" Rating: 5