Facebook Friends Forever-
Someone whom you don't really like, but are closely associated with so that you can't defriend them on facebook.
1. Annoying Uncle- Pain in the ass at parties, but friended you online- now he's your FBFF!
2. Asshole friend from High School- turned into an asshat after graduation, but writes on your wall- your FBFF!
3. Clingy ex- still wants to be "friends"- FBFF!
by mdwchitown July 3, 2009
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Acronym for "Facebook Best Friends Forever".

Someone you've never met in person, but you have daily exchanges (or more frequent) via Facebook in the form of Wall Posts, status updates, comments, chat and/or private messaging.

ALSO used as FBBFF, BFFB (Best Friends on Facebook) and BFFFB (Best Friends Forever On Facebook).
Dork 1: I wonder if my FBFF is as cool in person IRL as they are on FB!
Dork 2: Well I know for a fact that you're not as cool IRL as you are on Facebook. I posted that on your FBFF's wall, btw.
by roadies September 3, 2009
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OMG. Anne and Mary are totally FBFFs now! or Hey, Sally I just wanted you to know that you are my new FBFF, so, like let's be facebook friends forever and stuff.
by csky April 20, 2008
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Pronounced: fub-uff
1.Acronym for "front butt fat fuck" referring to a specific person.
2. Adjective. Someone fat, ugly, and has a toxic personality.
3. Also refers to someone with a toxic personality without having to be fat. It is a way of being.

(A front butt is when your stomach hangs down in such a way, it strongly resembles a butt on the front of your body)
He may be THE fbff, but she is a close second."

"Don't be a fbff."

"That was so fbff-like."
by ~Katrina~ January 16, 2008
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Pronounced: fub-uff
1.Acronym for "front butt fat fuck" referring a specific person.
2. Adjective. Someone fat, ugly, and has a toxic personality.
3. Also refers to someone with a toxic personality without having to be fat. It is a way of being.

(A front butt is when your stomach hangs down in such a way, it strongly resembles a butt on the front of your body)
"He may be The fbff, but she is a close second."

"Don't be a fbff."

"That was so fbff-like."
by ~Katrina~ January 6, 2008
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No one came to her wedding she posted about, all those fbff blew her off.
by TheSouthernNationalist April 16, 2015
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