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weak sister

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WordReference Random House Unabridged Dictionary of American English © 2026

weak′ sis′ter, [Informal.]

Informal Termsa vacillating person;
coward.
Informal Termsa part or element that undermines the whole of something;
a weak link.

1855–60

Forum discussions with the word(s) "weak sister" in the title:

Booze hound, booze lover, half cupper, weak sister and kid's stuff
Weak Sister
weak-sister excuses

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