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1.
someone who hangs out on facebook and throws in their 2 cents in everyone's wall posts.
look at that facebook bandit, he just commented on my post again.
by mr chi July 06, 2009
 
2.
someone who comments on everything a person posts on facebook
i just posted about my sick mother and the facebook bandit strikes again...."Love you mom, ur the best" facebook bandit,"that shit was raw man, love your mom!"
by angelblue December 13, 2013