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1.
The feeling of pride and self-centeredness exhibited when one takes multiple pictures of oneself in the sole purpose of putting a new default of facebook. Also exhibited if the person says things like "SEXY" on their own picture comments. Dead give aways are: (1.) Adding hundreds of random strangers of the opposite sex. (2.) Cussing somebody out on Facebook but not talking to anybody in real life. (3.) Having over 50-75 pictures of themselves, alone, where it was clear they were taking pictures of themselves and have no shame in it. (4.) Updating every single thing they do {I.E. Sittin' on the toilet, ;) haha}
Hold on Doc., before you put me under, I have to update my status to 'Going under the knife LOL.'" "Seriously? You have a major case of Facebook Narcissism.
by ima knock yo teef out June 06, 2010
 
2.
Any social media message designed to draw attention to the minutiae in one's life it would not ordinarily merit.
Travis' boisterous comments on the flavor of generic cola brands proved a perfect example of facebook narcissism.
by Travis.The.French October 05, 2010