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1.
One who is not yet acquainted with the ways and etiquette of facebook, (for example liking one's own status, commenting on one's own status before others comment, writing in all caps) A facebook newbie, if you will.
Wow, Sean is such a facebook newb boob.

She must be new to facebook, she is always newb boobing.
by Lorenzo in a Benzo February 04, 2010