BFF | Meaning & Examples

BFF is an abbreviation for “best friend forever” that people use in casual conversation and very informal writing. When someone says “my bff,” they might be referring to their #1 closest friend or one of many close friends.

Although BFF is common in text messages and social media posts, people have been saying it since the 1990s (before online communication was common). According to many sources, the earliest use of BFF in the media was on the Friends episode “The One at the Beach” in 1997.

BFF examples
My BFF is visiting me this June, and I couldn’t be more excited.

Rachel’s BFF works for a fancy catering company in New York.

We’ve been BFFs with Chad since 2010.

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What does BFF mean?

BFF stands for “best friend forever,” but the word “best” in this context isn’t always literal. A BFF can be your closest friend in the world or one of your closest friends. You might call someone a BFF if you’ve been friends for a long time or if you connect with them on a deeper level than your other friends.

BFF examples
One of my BFFs has a pug named Winnie.

Aaron ran into his BFF from first grade at the bowling alley.

How to use BFF

You can use BFF in conversation or writing. Although BFF is very informal, a few grammar rules are important to follow when you write it, even in a simple text message.

  • BFF looks better if you capitalize it, but people often use lowercase bff, especially if they’re texting in a hurry.
  • Add an “-s” (but no apostrophe) if you’re writing about plural BFFs. (Using an apostrophe for a word that’s just plural is one of the most common grammar mistakes, especially with initialisms and acronyms.)
  • When BFF is possessive, it needs an apostrophe + s (e.g., “my BFF’s new car”) unless you need a plural possessive (e.g., “our BFFs’ wedding), in which case the apostrophe goes after the plural “-s.”

National BFF Day

National BFF Day is on June 8 every year. It’s more of a social media trend than an official holiday. People celebrate BFF Day by posting captions and photos of their best friends, often with the hashtags #bffday or #bestfriendsday.

Businesses also use National BFF Day as a marketing tool on social media. For example, they might have BOGO (buy one get one) promotions or encourage people to buy gifts.

Tip
When you need to make a “Happy BFF Day” post, but you’re pressed for time or short on ideas, why not try QuillBot’s free AI caption generator? It can instantly show you different ways to celebrate your friendships.

Frequently asked questions about BFF

How do I say happy birthday to my BFF?

There are many ways to say “Happy Birthday” to your BFF, including these examples:

  • Happy Birthday, Bestie! I’m so grateful for your friendship, and I hope you have the most amazing day.
  • Happy Birthday, [Name]! I hope your day is as beautiful and amazing as you are.
  • I’m wishing you a wonderful birthday and looking forward to celebrating with you.
  • Cheers to my best friend in the whole world. I hope you feel special today.

QuillBot’s AI text generator can instantly show you some other ways to honor your BFF on their special day.

How do I wish someone a happy BFF day?

To wish someone a happy BFF Day on Instagram or other social media, tell them how much you appreciate them. Some examples include:

  • Happy BFF Day, [Name]! Thank you for always having my back and making life more fun!
  • It’s BFF Day, and I’m so grateful for a friend like you.
  • Friends like you make life more meaningful. Happy BFF Day today and every day.

QuillBot’s free caption generator can show you other ways to honor your close friends on BFF Day.

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QuillBot. (2025, August 25). BFF | Meaning & Examples. Quillbot. Retrieved November 27, 2025, from https://quillbot.com/blog/definitions/bff/

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