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'Best Behaviour Friend'. A friend or acquaintance in your social circle, whom you for one reason or another feel that you should be at your best behaviour around.
"My BBF came to the party, so I had to restrain myself hugely. If he hadn't been there, I'd have drunk so much more, and ended up dancing naked on the tables as I normally do when I've done tequila slammers"
by Shadedsoul March 18, 2010
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Hey dude no matter what you and I are buds, best buds, in fact, we are BBF
by Djstreet January 06, 2019
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He talks to me everyday and spends every moment with me he likes me I like him he is my bbf.
by Biggchunges January 14, 2019
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An annoying group of friends who usually "roast" each other for hours on end.
BBF CONVERSATION:

Will: You're sister's fit.

Ollie: Will SHUT UP YOU'RE FAT

Robbie: You hath a lisp

Ollie: You're small .I get bare pussy.
by BBF OM IS LEGEND October 25, 2018
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