The Collaborative International Dictionary of English v.0.48:

Saucebox \Sauce"box`\, n. [See Sauce, and Saucy.]
   A saucy, impudent person; especially, a pert child.
   [1913 Webster]

         Saucebox, go, meddle with your lady's fan,
         And prate not here!                      --A. Brewer.
   [1913 Webster]