when someone gets a facebook and becomes addicted to it. Dealing with anything from farmville, updating status, commenting liking status, and stalking celebrities. stalking Daniel Tosh does not count as having facebook fever because he is gay and it just means your gay. Usually lasts for only a week or so, but some people have a low tolerence and their cases of facebook fever have been permanent.
Wow that hot girl hu just got a facebook sure has facebook fever
"Wow that guy sure has facebook fever", no he doesnt he liked daniel tosh's page he is just gay