Top definition
At the end of a long text or email, that even you have to admit is boring, sign off with ECFN

Blah, Blah , Blah, Blah, Blah, Blah, Blah, Blah, Blah, Blah, Blah, Blah.
ECFN
by Humur 54 October 18, 2011
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