Meaning of muggins

mug•gins

Pronunciation: (mug'inz), [key]
— n.
  1. a convention in the card game of cribbage in which a player scores points overlooked by an opponent.
  2. a game of dominoes, in which any player who can make the sum of two ends of the line equal five or a multiple of five adds the number so made to his or her score.
  3. a fool.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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