n. [ Etym. unknown. ] 1. A game of dominoes in which the object is to make the sum of the two ends of the line some multiple of five. [ Webster 1913 Suppl. ]

2. A game at cards which depends upon building in suits or matching exposed cards, the object being to get rid of one's cards. [ Webster 1913 Suppl. ]

v. t. In certain games, to score against, or take an advantage over (an opponent), as for an error, announcing the act by saying “muggins.” [ Webster 1913 Suppl. ]