Best shitting buddies.
This a term used for best friends who shit together (usually while texting), and you know what they say: Those who shit together, stay together.
"What are you doing right now, Hyun?"
"I'm taking a shit wby?"
"Omg, same! BSBs!"
by gaybestfrient May 02, 2020
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Bsb is a coffee type that stands for bullshit bitch.
I love Bsb coffee and strongly recommend it to you!
by Livelifelove April 04, 2020
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Bestie since birth. Someone u have known since birth or for as long as u can remember. U have always been there for each other and always will be. Can be boy and boy, boy and girl, or girl and girl
Girl #1: ugh I miss jack, he’s my bsb, can’t believe he had to move away

Girl#2: girl I may have not known u since birth but honey I will be here for u
by Happyhour101 August 20, 2018
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That's really messed up that you helped that girl out by telling her, her friend was talking shit about her .. and she went to say it was none of your business then talked crap about you what a BSB
by tellabitch August 13, 2017
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