dial. [?] (See quots.).
1726. Bailey (ed. 3), A swank (at Bocking in Essex) that Remainder of Liquor at the bottom of a Tankard, Pot or Cup, which is just sufficient for one Draught; which is not accounted good Manners to divide with the left Hand Man; and according to the Quantity is called either a large or a little Swank.
1813. Monthly Mag., XXXVI. 520. [At Braintree, Essex] A pint of beer is divided into three parts or draughts; the first is called Neckum, the second Sinkum, and the third Swank or Swankum.