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1.
follow-back. On twitter when you see something as 'follback' it means follow back. When someone followed you on twitter and he/she said 'follback' it means he/she wanted you to follow him/her also. Usually you don't know these people, they just want to get more followers. Most of them are fucking nolifers.
Megan tweets: @rosie yo follow me, i will follback
rosie tweets: @megan no way, i don't need it. get a life!

or

bee: @jazz hey i've followed you, follback please!
jazz: @bee yea done
by beemusprime June 28, 2011