The mindless surfing facebook completely blazed with no purpose whatsoever. Often accompanied by a gaping mouth, glazed-over eyes, and staying up late into the night accomplishing nothing.
"Dude why did you sleep til 4 in the afternoon?"
"After I came home from smoking with some peoplelast night I ended up facestoning for hours."
To look at pictures, read profile information, and/or repeatedly check the status of an individual on facebook. This person can range from a good friend to someone who you have never actually met.