snake oil salesmen

Noun

snake oil salesman (plural snake oil salesmen)

1. A swindler or grifter who sells worthless or fraudulent remedies, cures, or solutions such as snake oil, often an aggressive or showy manner.
   • She was dubbed a "modern day snake oil salesman" after she managed to swindle over thousands of internet customers.

   Synonyms:

   bristler, bunco artist, bunco-steerer, chiseler, con artist, confidence artist, confidence trickster, conman, flimflammer, grifter

2. One who deceives people in order to obtain money from others: fraud, scammer, charlatan, huckster, conman.