What Does XBF Mean?

XBF means "Ex-Boyfriend" and "Ex-Best Friend." Here is more information about each of these definitions of XBF, together with examples of use and an explanatory video.


The abbreviation XBF is most widely used to mean "Ex-Boyfriend." In this context an XBF is any male with whom there was previously a romantic involvement.

XBF doesn't actually say anything about the current status of the relationship (i.e., an XBF may now be a good friend, a sworn enemy or just (as in the famous words of Gotye) "Somebody That I Used To Know." For example:
  • Toni: How's your boyfriend. Jake, isn't it?
  • Jordan: Who? Oh him. He's just another XBF now.
XBF is an extension of the abbreviation BF ("Boyfriend").

If your ex is female you will need XGF ("Ex-Girlfriend").

Ex-Best Friend

When used with the meaning "Ex-Best Friend" XBF often means a very good friend who betrayed you in some way and with whom you are no longer on speaking terms. However, it can also be used to refer to a very good friend with whom you have lost touch. For example:
  • Ali: I haven't seen you with Sam for a while. What's up? You two were inseparable.
  • Jo: Are you referring to my XBF, who I never want to see again and who is dead to me?
  • Ali: Yeah, that's the one.

Image for XBF

When I write XBF, I mean this: meaning of XBF XBF also means "Ex-Best Friend."

Video Summarizing XBF

Here is a video summarizing how XBF is used online.

Summary of Key Points

First definition of XBF

"Ex-Boyfriend" is the most common definition for XBF on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok.
2: Quite easy to guess
Typical Users:
Adults and Teenagers

Second definition of XBF

"Ex-Best Friend" is another definition for XBF.
Definition:Ex-Best Friend
2: Quite easy to guess
Typical Users:
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:


An Academic Look at XBF

The letter "x" is a common abbreviation of the word "ex." However, XBF is still considered an initialism abbreviation, i.e., an abbreviation pronounced using its individual letters. (In this case "Ex Bee Eff").

Example of XBF Used in a Text


Help Us To 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.