a chink in his armour
a chink in his armour
a weak point in someone's character, arguments or ideas which makes them vulnerable to attack or criticism.
Related Idioms :
not a Chinaman's chance
not even a very slight chance
1952 - Frank Yerby - A Woman Called Fancy – You haven't a Chinaman's chance of raising that money in Boston.
a chink in his armour :
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