I believe it has something to do with bullying. Also, I think I heard it as a verb: やさぐれる I can't seem to find much information about it. Is it slang?
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It seems that most Japanese-to-English dictionaries have an entry for this (e.g., JMDict: http://tangorin.com/general/yasagure), and I'm not sure I can elaborate much more than what's on there:
If you're interested in the etymology, I recommend checking out the gogen-allguide entry for やさぐれる.