"Too Cool For Facebook" Adjective to describe someone who is not on facebook because, quite simply, they are too cool for social networking on the internet.
A: "Hey, add me on facebook!"
B: "Sorry, I'm tcff."
A: "Whoa, I need to find that girl on facebook later."
B: "You're going to have to try harder than that - she's tcff."
A: "You haven't responded to my party invite or commented on the fact that I just got divorced or liked any of my amazing photographs."
B: "That's because I'm tcff. You're going to have to engage in a actual real life friendship with me, man."