What does FBF mean on Instagram?
There are nearly 3 million photos with the hashtag on Instagram.
FBF = Flashback Friday
#FBF is an acronym primarily used on Instagram, Facebook, Twitter, and Tumblr that stands for Flashback Friday. Users typically use the tag on photos of moments in their past, like last year’s vacation or a childhood friend. Flashback Fridays are usually uploaded on Friday, hence the name, but are occasionally uploaded on other days.
FBF stands for Flashback Friday on Instagram.
See other slang & acronym definitions on whatdoesctfumean.com: