A virtual war taking place on facebook. Can arrive in the form of flame wars, poke fights, etc.
"God damnit, Jim won't stop poking me! I declare a facebook-off."
by Adoxographist May 19, 2009
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Someone who appears more beautiful on his/her facebook profile picture than they are in reality.
Dude A: Dude, Jennifer isn't as hot as you told me she is!

Dude B: Dude, that was totally a Facebook rip-off.
by Maxi J October 06, 2010
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