Facebook true
When something that someone posts on facebook is obviously not true and is used for comedic or dramatic effect.
Friend 1: "Wait, the only person that inspires Tina is 'the Dude' from The Big Lebowski?"
Friend 2: "That's only Facebook true, I'm sure there are other people that inspire her in real life!"
Friend 2: "That's only Facebook true, I'm sure there are other people that inspire her in real life!"