The Collaborative International Dictionary of English v.0.48:

Out \Out\, interj.
   Expressing impatience, anger, a desire to be rid of; -- with
   the force of command; go out; begone; away; off.
   [1913 Webster]

         Out, idle words, servants to shallow fools! --Shak.
   [1913 Webster]

   Out upon! or Out on! equivalent to "shame upon!" "away
      with!" as, out upon you!
      [1913 Webster]