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1.
A re-boot of an account on a social networking website.
I friended a few girlfriends and ex-girlfriends who probably shouldn't know about each other, and put up some pictures that made me look kinda stupid, so I figured the best option was a complete faceboot.
by Paulhotel June 11, 2009
 
2.
When somebody suddenly removes you from a social networking site, for seemingly no reason and with no explanation.
Rob: Hey man, have you seen those pictures on Amanda's Facebook page?

Dan: I can't, she gave me the Faceboot last week.
by Random Bro #252345 February 21, 2010