snake oil

Meaning

  1. (idiomatic, uncountable) A fraudulent, ineffective potion or nostrum; panacea.
  2. (uncountable) A traditional Chinese medicine used to treat joint pain.
  3. (uncountable) A type of 19th-century patent medicine sold in the United States that claimed to contain snake fat, supposedly a Native American remedy for various ailments.
  4. (idiomatic, uncountable) Any product with exaggerated marketing but questionable or unverifiable quality.

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