Overexposure to 'facebook' - a social networking website. It describes a situation or person who uses unnecessary applications, completes tedious quizzes and tests, uses real money to buy 'virtual gifts' and continuously pokes and/or gets poked by other facebook users.
Dweeb Numbnuts was doing so many quizzes and receiving so many pokes on facebook that he was developing face-ache.
an annoying, intrusive or or obstinate person
Christ Almighty wonder. You is a face-ache, ain't you? Roamin' the ship, poking your nose into everyone's business.