A person who lies on there Facebook status/info/comments to make his or her life seem more interesting.
Molly's Status: going to the movies tomorrow! what should i see?
Molly's Sister: you aren't going to the movies! we have to go to a wedding. Gosh you're such a Facebook Fibber.
Molly's Sister: you aren't going to the movies! we have to go to a wedding. Gosh you're such a Facebook Fibber.
by Andi412 June 21, 2010