Top definition
Referring to someone by the name they have on facebook, rather than their real name, because the truth is you see their facebook more often than you see them in person.

Can be taken to even worse extremes when a screenname is substituted.
Frank: *thinking* Hey, it's James DePaul!
Jim: *thinking* Oh, it's that Francis Williams guy. *facepalm* Oops... facebook name syndrome again.
by Peachy Gee October 21, 2009
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