juste-au-corps /ˈʒuːstəʊkɔː/ noun3 •(historical) A tight, knee-length men's coat worn in the late 17th and early 18th century. •(historical) A tight women's riding coat of the late 17th and early 18th century. •(historical) Any tight-fitting garment, specifically a coat or waistcoat, of the second half of the 17th century.