The Collaborative International Dictionary of English v.0.48:

Tommy \Tom"my\, n.
   1. Bread, -- generally a penny roll; the supply of food
      carried by workmen as their daily allowance. [Slang,Eng.]
      [1913 Webster]

   2. A truck, or barter; the exchange of labor for goods, not
      money. [Slang, Eng.]
      [1913 Webster]

   Note: Tommy is used adjectively or in compounds; as, tommy
         master, tommy-store,tommy-shop,etc.
         [1913 Webster]

   3. Same as Tommy Atkins; -- a shortened form. [Colloq.]
      [PJC]

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "Tommy":
   Anzac, Aussie, Boche, Fritz, GI, Heinie, Hun, Jerry, Johnny, Kraut,
   Yank, askari, digger, doughboy, jock, poilu, redcoat, sepoy,
   swaddy