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BSF

BSF, acronym. Short for Bud Softball Fan. That guy a woman says is her best friend for making her a softball star, when everyone knows she's ready for some hardball!
It's like Neo, from the matrix always said, "If you call me big papa, and I call you Madame I mean My Dame, I mean Ma Damn! there better not be any BSF laying claim John Wick Zaddy cred... Because I want you in the big leagues, your royal majesty"
by DiamondDouche December 4, 2023
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gay bsf day

happy gay bsf day!!!
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BSF

BallSack Factor
The BallSack Factor is calculated by the difference in the height of your balls divided by the length of your lowest hanging ball. The difference of the balls is measured from the center point of the upper and lower ball. The length is determined by measuring the distance between the base of the ball sack to the lowest point of the ball sack.

BSF = Δballsack / ℓ ballsack
How is your BSF doing? Are you hitting double digits yet?
Almost! My BSF was around 9.7 this morning, what about yours?
No way bro! My BSF was only 0.5 :(
by Monsieur Ballzaque February 13, 2023
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Ask your bsf to fuck

Tis the season! Christmas is coming along and what better yet to do is a prank?! December 20th is Asking your Bestfriend to fuck and see their reaction, Have Fun!
Jack: “ Hey amber , bestie you wanna fuck?
Amber: “No ew that’s weird jack!”
Ask your bsf to fuck
by Bigbandit December 20, 2022
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Rogans BSF

Referring to Rogans Best Friend, particularly a freshmen that doesn’t like to take the blame for being Rogans sidekick. A fiend that likes to get pushed into lockers. (Rohan-Junior) ( fiendy freshmen)
Example: “Fiend(no name mentioned) why do you blame a junior(no name mentioned) for being Rogans BSF(best friend)
by PandaBoxer000_[ December 12, 2022
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National bsf day

You have to become bsf with one person
Go up and ask to be there bsf happy national bsf day
by Bsf4ever September 23, 2019
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Cringy bsf necklace

a cringy bsf necklace is the definition of haydens Josh fanpage.. aka hydrajoshh
“a cringy bsf necklace is the definition of hydrajoshh on tiktok because his account is cringy and childish.” … “omg I know right.”
by hyrdajoshhsucks December 15, 2021
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