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1. A person who constantly brags about his blurry, pseudo-achievements by updating his Facebook status so that others can have an untruthful image of him;

2. A person who takes pictures, or edits them, for the sake of showing off on Facebook.
Mike: Did you see that Jamey was talking about his school grades again on Facebook?
Mickey: Oh, don't even mention that, he's such a facebookoser, I've even blocked him because of that. I'm sick of him trying to get attention for something that is not even real.

Jenny: Have you seen Marry's photos from the beach?
Jessy: I wonder why somebody would post a half-naked picture of herself on the internet, she's such a facebookoser.
by adinc September 28, 2010
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