A person who finds it extremely difficult to focus on anything other than facebook. If they're at work, all they think about is finding a window of opportunity so as to be able to access thier facebook page. If the kids are hungry, then food will consist of a pot noodle, a packet of crisps and a can of coke, taking as little time as possible to prepare in order to get back to thier beloved facebook. This inturn creates what is now know as a facebook orphan.
A male or female who after reading the definition of a 'facebook whore' and realising it actually applies to them, then decide, through sheer embarrassment to cull (reduce) the number of friends that they have accrued to a more realistic amount.