1 definition by Lady Lumsden

A person on the social networking site Facebook who leaves inflammatory, slanderous, and generally hateful comments on other people's Facebook walls with a total disregard for people's feelings or ability to cause them physical harm. They may also click "like" on status updates that suggest the user is having a bad time.
Ben you are such a Facebook Gangsta, I'd like to see you say that in real life.
by Lady Lumsden February 16, 2011
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