What Does BSF Mean in a Text?

homesearch bBSF

The Quick Answer

BSF is a term used frequently across TikTok and other social media platforms like Snapchat, Instagram, and Twitter.

More Detail...

It has lots of meanings, but most of the time it means "Best Friend" or "Best Sister Friend." Another meaning that pops up regularly in text chat is "But Seriously Folks." Here we take a look at these three most common definitions of BSF and, for the sake of completeness, there's a list of some of the other definitions too.

Best Friend / Best Sister Friend

BSF is often used as shorthand for Best Friend. In this context, it is very similar to BF or terms like BEZZA , BEZZER, BEZZIE, and BESTY. A BSF is someone with whom one shares a deep level of mutual understanding and trust. Best friends are people a person can confide in, rely on, and spend quality time with. They can be of any gender, and the relationship is typically characterized by trust, loyalty, and unfeigned affection.

image showing a group of friends

Among girls, BSF can also mean Best Sister Friend. In this context, it implies that a female friend is such a close friend, she is like a sister. For example:
  • Sam: You're my new BSF.
  • Ali: Hurray! Hang on, why now? What's changed?
  • Sam: Nothing. Just Jo has been promoted to my actual BSF.
  • (Here, BSF means "Best Friend" and "Best Sister Friend.")
BSF is not usually used for real sisters.

But Seriously Folks

When used to mean "But Seriously Folks," BSF is used to add emphasis to a comment, or to bring the conversation back to the point after a joke or banter. For example:
  • Billy: I got a new stick deodorant yesterday. The instructions said, "Remove cap and push up bottom." I haven't been able to walk properly all morning!
  • Jo: LOL!
  • Billy: BSF, my farts smell of coconut and apricot!
  • Lee: We're going to party, party, party like no one has ever partied before!
  • Terry: Yay! BSF, has anyone booked a taxi?

Other Definitions of BSF

BSF has many other meanings, including:
  • Bible Study Fellowship.
  • (Bible Study Fellowship is a fellowship offering a system of structured bible study.)
  • Bolivares Fuerte (BsF).
  • (The Venezuelan currency.)
  • Border Security Force.
  • (The Border Security Force is the primary border defense organization of India.)
  • British Softball Federation.
  • (The British Softball Federation is the national governing body of softball within the United Kingdom.)

50 Ways to Say "Best Friend"

While we are on the subject, here's a short video with 50 ways to tell someone they're your best friend:

Image for BSF

When I write BSF, I could mean this:

meaning of BSF

BSF more commonly means "Best Friend" or "Best Sister Friend."

Summary of Key Points for First Definition

"Best Friend" is a common definition for BSF on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok.
Definition:Best Friend
Guessability:guessability level 1
1: Easy to guess
Typical Users:typical user

Adults and Teenagers

Summary of Key Points for Second Definition

"Best Sister Friend" is another common definition for BSF.
Definition:Best Sister Friend
Guessability:guessability level 2
2: Quite easy to guess
Typical Users:typical user

Adults and Teenagers

Summary of Key Points for Third Definition

BSF also means "But Seriously Folks."
Definition:But Seriously Folks
Guessability:guessability level 2
2: Quite easy to guess
Typical Users:typical user

Adults and Teenagers

An Academic Look at BSF

image for academic look at BSF

As it is pronounced using its individual letters, BSF is classified as an initialism abbreviation. Initialisms are different to acronyms, which are abbreviations spoken as words (e.g., LOL, NATO).

Example of BSF Used in a Text

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