kitcat

a. 1. Designating a club in London, to which Addison and Steele belonged; -- so called from Christopher Cat, a pastry cook, who served the club with mutton pies. [ 1913 Webster ]

2. Designating a canvas used for portraits of a peculiar size, viz., twenty-eight or twenty-nine inches by thirty-six; -- so called because that size was adopted by Sir Godfrey Kneller for the portraits he painted of the members of the Kitcat Club. Fairholt. [ 1913 Webster ]