1.Chiefly British Something extra or left over that is obtained free. 2. An extra ration.
ADJECTIVE:
1. Free of charge; gratis: If they deposit these shares, too, in the scheme, they will get further buckshee shares on a one-for-one basis (Economist). 2. Unsolicited; gratuitous: The title was a bit of buckshee deceit, and had little to do with the plot (Financial Times).