BSF

A bsf means best friend usually, bsf can mean a best friend who is like a sibling to you or just a best friend

Hey bsf how are you 2day

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BSF

Best sister/friends
When two best friends are so close that they consider themselves as sisters !

- Pauline and Catherine are really close!
- Yeah! They're BSF s :)

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BSF

Best friend

You want to fight bsf

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BSF

How low do you hang?
Ball Sag Factor

How's the BSF today?

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BSF

"Bull Shit Foursome"
Four friends who often go out together on random crazy adventures and day trips.

Let's go out BSFing this weekend!

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BSF

The cliched phrase every guy tells to a girl when he wants her: Beautiful, Smart, and Funny.

Hey bro, did she say yes?
Nah, I did the BSF way too early

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BSF

Someone who is a BOOB STARING FREAK. Usually straight guys.

"oh my gosh that chick has got a nice rack!"
"YOU BSF!"

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