Bsf is the abbreviation for bolívares fuertes which is the currency of Venezuela.
$1 is equal to Bsf. 112268.29
by macbaebih December 24, 2017
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Best suspenseful fortnite. This is when you play fortnite and you do amazing but it is very suspenseful and intriguing.
Omg I just had my bsf game last night!
by Olive Garden123 March 28, 2018
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BSF: Butt Sex Friday's. A day of the week where you exclusive have butt sex/anal sex.
Kyle: what is BSF?
Josh: Butt Sex Friday's

Kyle: Oh, I love BSF!
by RagNasty November 1, 2020
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best sex friend best friend you have sex with
Alt night was great I hung out with my bsf ;)
by Yhnhjk September 5, 2022
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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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