flashback Friday(redirected from flash-back Friday)
A social media phenomenon in which older pictures (such as childhood photos) are posted on Friday with the phrase (often abbreviated "FBF") as an accompanying hashtag or caption. I'm going to post my second grade class picture for flashback Friday! Me at my senior prom! #flashbackFriday
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.