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Commonly used between two 'Bffs' (best friends forever) to describe the state of being Bff's.

Just like friends have their friendship. Bff's have their Bffness.
Mary: Bee! i think our Bffness is deteriorating drastically!
Jen: What do you mean Eff? Since when?
Mary: Since you've been hanging out with Sally!
Jen: I think your just being paranoid... your my Bff and our Bffness will last forever!
by HmmfCreator May 27, 2009
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