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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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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How low do you hang?
Ball Sag Factor
How's the BSF today?
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"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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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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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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