Facebonking
A person who goes nuts on Facebook. They comment on every photo, write on every wall, and join every group just to feel important.
Post: 'This photo is me and my cat.' Comment: 'This is the best photo ever!' 2 hours later: 'This photo needs a second comment.'
Wall post: 'Happy birthday!' Reply: 'Thanks! Did you know I joined your group 3 days ago?'
Message: 'Hey, wanna be friends?' Reply: 'Only if you follow me on 5 groups.'