What Does BFF4L Mean? (Using BFF4L Online)

BFF4L means "Best Friend Forever for Life."

The abbreviation BFF4L is typically used by teenage girls as a term of friendly endearment with the meaning "Best Friend Forever For Life."

BFF4L is one of the most over-the-top compliments that a person can pay to a friend. On the scale of exaggerated compliments, BFF4L is probably equal to BFFAE ("Best Friends Forever And Ever" or "Best Friends For All Eternity"), but easily ranks above:

Image for BFF4L

When I write BFF4L, I mean this:

meaning of BFF4L

Not everyone has what it takes to be a BFF4L.

Summary of Key Points

"Best Friend Forever for Life" is the most common definition for BFF4L on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok.
Definition:Best Friend Forever for Life
Guessability:guessability level 4
4: Difficult to guess
Typical Users:typical user

Adults and Teenagers

50 Ways to Say "Best Friend"

Here's a short video giving 50 ways to tell someone they're your best friend:

Examples of BFF4L in Sentences

Here are examples of BFF4L being used in conversations:
  • Girl 1: I just know that you and me are going to be BFF4L!
  • Girl 2: Err... yeah. See you next week or sometime then.
  • Girl 3: Will you be my BFF4L?
  • Girl 4: Wow, thanks! I haven't had a BFF4L for ages.

An Academic Look at BFF4L

BFF4L is defined as an "internet slang term" by our team because some of its characters are used as substitutes for letters. Most "slang terms" were introduced to reduce the number of key strokes required to write the word, but since the arrival of predictive texting and keyboards on mobile devices, this efficiency is no longer required. Nevertheless, "slang terms" are still regularly used to make messages more entertaining or to express individuality. "Slang terms" differ from icons because they are not pictorial representations.

BFF4L is used as a noun. When the term is expanded, it is a noun phrase headed by the common noun Friend. (The words Best and Forever for life modify friend.)

What Did We Say before Texting and Social Media?

Before the digital era, we might have said something like "bezza" or "besty" instead of using the abbreviation BFF4L.

Example of BFF4L Used in a Text

author logo

This page is maintained by the Cyber Definitions Editorial Team.

Help Us Improve Cyber Definitions

  • Do you disagree with something on this page?
  • Did you spot a typo?
  • Do you know a slang term that we've missed?
Please tell us using this form.


Try our fun quiz to test your knowledge of slang and texting abbreviations.
gold cup

gold cup

gold cup

  • This test has questions.
  • A correct answer is worth 5 points.
  • You can get up to 5 bonus points for a speedy answer.
  • Some questions demand more than one answer. You must get every part right.
  • Beware! Wrong answers score 0 points.
  • 🏆 If you beat one of the top 3 scores, you will be invited to apply for the Hall of Fame.
Scoring System

Cyber Guru (+)
Cyber Hero (+)
Cyber Captain (+)
Cyber Sergeant (+)
Cyber Recruit (+)