Definitions
There are 2 meanings of the phrase
Snake Oil.
Snake Oil - as a noun
(medicine) any of various liquids sold as medicine (as by a travelling medicine show) but medically worthless
Example Sentences
"He was skeptical of the salesman's claims, thinking it was just snake oil."
"The website promised a magical weight loss solution, but it turned out to be nothing but snake oil."
"She wasted her money on expensive snake oil hair products that had no effect."
"The company advertised their product as a cure-all, but it was just snake oil."
"People should be cautious of products that seem too good to be true, as they might be snake oil."