Buckshee

Buckshee: (Hind.–Bakshish). Free. Gratis. Extra. Of old army origin from India, the word acquired in the war all kinds of applications. For instance: A usual enquiry at meal time among the rank and file was "Is there any buckshee?" meaning is there anything over, anything to spare.

"Buckshee Leave" was a term for special leave, not counting as the ordinary diary leave.

A "Buckshee Corporal" would be an extra one over normal strength.

A man wanting a smoke would say to another, "Have you a buckshee cigarette about you?" i.e., one to spare me.

The word of course is in ordinary everyday use in the services for any "catch" or windfall.