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BFF has two definitions
the most common of which is : Best Friends Forever

the other is the complete opposite and is: Big Fat Fuck
Yo dude, that guy is my BFF, we have been friends our whole lives and we will until we die
Man that girl is such a BFF, she is so fat and annoying
by shlubster January 24, 2012
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A person who will be There for you and never lie or take your ex boyfriend. A person who you can trust. A kind,loyal,and nice person. Who doesn't care what you wear or look like. Someone who gives you compliments everyday. Someone who hugs you . Who supports you in every decision. Who will help you when you hurt.
by Bella rose.93 April 17, 2019
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Like, best friends for EVER
1. .:-+JA + TM+-:.
2, OMG, Sarah and me are totally bff!
by Julia Ackbar November 12, 2003
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As seen on an episode of 30 rock.

BFF stands for "butt fucking festival"
Jack: Look we got BFF bracelets

Liz: you guys are best friends forever?

Jack: thats not what that stands for..

*whispers in Liz's ear*

Liz: Why would you celebrate that!
by jumboooooobs January 08, 2010
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best friends interjection that is used to end an email in case one of the corresponding parties dies in a car crash in a ditch before the two see each other again.
Okay...Iยดll talk to you later...bff!
by emilave January 28, 2003
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Stands for Best Friends Forever. An abbreviation mostly written on binders or notes by girls in grade school, however, over the last few years, people who use to use the term in grade school have actually started saying it, typically in a joking manner, to mean a close relationship with someone.
OMG Wendy is so cool, we are totally BFFs now.

We have so much in common, its like you are my BFF.
by evapor8ed March 22, 2006
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