a term on snapchat which means "you're their best friend, but they aren't yours."
person 1: hey what emoji do i have on ur snap
person 2: uhhh *changes emoji from "their bf, but..." to "bff"*
by i'm trying my best May 29, 2018
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boyfriend, male romantic companion, male partner, male chum (Internet Slang)
by MarkLetras February 17, 2006
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He tells me he doesn't have a bf right now.
by The Grammar Nazi February 20, 2002
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"i cant hang out later sarah im going to my bf's house. i think we might do it tonight"
by Jen&&juice December 2, 2007
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Abbreviated form for Best Friend
Tanya would still be my BF if she had my shirt.
by BD Goertz December 7, 2005
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Big F'ing Shiii
I just took a BFS Bro!

What...breadth first search?

No man, a big f'ing shiii!
by 3-Dawg July 24, 2011
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