1 definition by John 26
A person who is addicted to facebook. This person always knows their friend count, and it usually includes many people that they dont even know. Every time a facebook slut is near a computer, he or she automatically logs in and looks around the site for half an hour.
Dennis is always talking about how many friends he has on Facebook. Every time he visits me, Dennis logs on to my computer to check his Facebook. Dennis is such a Facebook Slut!
by John 26 December 1, 2005