When someone is on the computer and they go back and forth from other sites to facebook to check if they have mail.
by Sipacris January 03, 2011
David: what's wrong with Sarah, she left without telling us.
Emma: gues she's surfing!
David: emmm, guess she's a "Facebook Itch".
Emma: gues she's surfing!
David: emmm, guess she's a "Facebook Itch".
by Wunder Kind May 25, 2015