FBBS is commonly known as facebook boredom syndrome. When someone stays on facebook anywhere from thirty seconds to hours long they develop this syndrome.
Symptoms of FBBS may include the following:
wishing you could go somewhere
hoping you get a IM from someone
Girl: "UGH, im dying of FBBS.. i can't take it anymore"
Boy: "ME TOO, but there is nothing better to do."
Girl: "Right, i guess everyone on facebook has FBBS"
Boy: "i agree"