(of a voice or sound) That resembles the quack of a duck.
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Fraudulent; characterised by or using the methods of quackery.
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(US, of land or a crop) Infested with quackgrass.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.