E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Mug-house.
An ale-house was so called in the eighteenth century. Some hundred persons assembled in a large tap-room to drink, sing, and spout. One of the number was made chairman. Ale was served to the guests in their own mugs, and the place where the mug was to stand was chalked on the table.
