Webster's Revised Unabridged Dictionary · 1913

Tommy

Tommy , noun

1.
Bread, -- generally a penny roll; the supply of food carried by workmen as their daily allowance. [Slang,English]
2.
A truck, or barter; the exchange of labor for goods, not money. [Slang, English]

Tommy is used adjectively or in compounds; as, tommy master, tommy-store,tommy-shop,etc.

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