Top definition
A malicious Facebook app that acts like a human (eg. adding friends, etc)

OR

A Facebook human that acts like a robot. Facebots deal directly with Facebook and not with the people on it. They only know what's going on in your life if they get a Notification about it; they write to their wall instead of talking to you.
Congrats on your new baby, can't believe I had to find out about it on here, thanks facebot! :(
by Dicklechips March 22, 2009
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