Newfoundland English, verb, or noun, plural jannies. "Elaborately costumed person who participates in various group activities at Christmas; fool, mummer. 1896 J. A. Folklore ix, 36, 'Old teaks and jannies, boys and men who turn out in various disguises and carry on various pranks during the Christmas holidays, which last from 25th December to Old Christmas day, 6th January.' 1928 Newfoundland Quarterly, Dec, p. 15: 'The merry party of 'Jannies,' or 'Mummers' made the welkin ring with their weird shouts and cries and their 'false faces' sent many a frightened child in haste to its mother's knee.'" Also jennies, janneys, johnny. See also janny-night and janny-talk. --from Dictionary of Newfoundland English, 2nd edition.