When a seriously bored individual spends hours doing nothing but looking through facebook, to the point of madness or suicide, whichever comes first.
X: "Have you seen Andy? I swear he's spent four hours on facebook! Hasn't he got better things to do?"
Y: "Oh you know how he is, probably just having another Facebook slog"
Y: "Oh you know how he is, probably just having another Facebook slog"
by Captain Capable July 12, 2011
Get the Facebook slogmug.