pannikin noun2 •A durable cup or other vessel used for drinking made of metal and coated in enamel.Scarcely had we got things fixed and supper under weigh, when a yell from Boteler, 'He's going to spout!' caused us to drop teapot and pannikin, and tumble out of the tent in half no time. — 1876 •The contents of such a vessel.“[…] Put the billy on the fire, Jimmy, and we’ll drink him a good voyage in half a pannikin of tea before we turn in.” — 1903 formspannikins