Definition of muggins
plural muggins
1 a
: a provision in many games played in England that if a player fails to record an earned score promptly his opponent may say muggins and claim that score
—used especially in cribbage and dominoes
b
: a dominoes game identical with sniff except that the muggins provision is included
c
: any of various card games in which a score overlooked may be claimed by saying muggins or in which the player with the worst score is called muggins
—used especially in children's games
2
: simpleton
- had seen too many muggins come bowing and smiling
- —Enid Bagnold
