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A fake friend who adds you on Facebook but never talks to you in real life. They post on your wall like they're your best friend, but if you pass them in the hall, they pretend they don't know you.
Added me on Facebook, but I've never seen them outside of school.
They wrote on my wall: 'You're the best!' but didn't even say hi in the lunchroom.
They added me, then blocked me when I asked why they never talk to me.