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Your boyfriend on facebook. He could live very far away, be in a relationship, or both. You trade messages and emails but never see each other in person.
I'm single, but I'm in love with my fbbf.
by RealNaughtyRN January 17, 2010
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2
Achronym for Furball Best Friend; A well fawned of friend, when at rest, resembles a ball of fur.
My dog, Gizmo is my FBBF.
by YumiSpewns May 28, 2010
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3
(Face Book Best Friend). (n) a person that you do not know at all, but for some reason feel the need to respond to any number of your posts as a close friend.
Sally: No feeling 100% percent today.

FBBF: I am so sorry to hear that.

Sally: Thanks, to my newest FBBF.
by Istvan Sengir May 14, 2010
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4
A boyfriend that is only existent on FB and is only FB official.
Sarah:So your my FBBF now?
Brett:Yepp if you will accept my relationship request.
by Getmygwallados August 06, 2010
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