Top Definition
A disease in which facebook takes over your life and you cannot do anything anymore besides look at your friends pictures and write on their walls.

Sever cases include times where your trying to get work or homework done on the computer, yet somehow you always find yourself on facebook, getting absolutely nothing done.
Teacher: Suzie, where is your homework?

Suzie: I couldnt do it I have facebookitis

Sister: Did you remember to give grandma her meds?

Brother: umm.. i had facebookitis and forgot
...
by Tuhdumbum November 03, 2009
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