Faceback
The comments or reactions you get from your friends after they visit your Facebook. It's like when you post something and your friends reply with all sorts of funny or mean stuff.
My friends left comments like 'You look like a mess today' and 'Did you even shower?'
My friends said 'That's the worst haircut ever' and 'You're gonna be famous!'
My friends wrote 'You look like a zombie' and 'You're going to die soon.'