Definition of "wastecoat"
Obsolete form of waistcoat.
Quotations
The French gentleman and Mr Adderly, at the desire of their commanding officer, had raised up the body of Jones, but as they could perceive but little (if any) sign of life in him, they again let him fall, Adderly damning him for having blooded his wastecoat […]
1749, Henry Fielding, The History of Tom Jones, a Foundling, volumes (please specify |volume=I to VI), London: A[ndrew] Millar, […]