(Adj) the act of being inebriated during your scheduled restaurant shift.
When she came in to work was fine, but by the end of the night she was shift faced.
by DJ McBojangles March 06, 2015
Riding motorcycles or quads around completely wasted. term comes from a brand of riding gear called Shift.
lets drink before we go riding, i want to go out shift-faced
by Papacav May 14, 2010