Mountebank is a word that I have never encountered. I read the word recently, and thought I should investigate it.
Mountebank definition –
a person who sells quack medicines from a platform or a a boastful unscrupulous pretender. This person may even be labeled a charlatan.
Origin of mountebank — Italian montimbanco, from montare to mount + in in, on + banco, bancabench It was first used in 1577.
Synonoms for mountebank: phony, fraud, imposter, trickster, hoaxer
When thinking of this term, the 1970s craze of the pet rock came to mind. Some might say that Gary Dahl, the inventor of this toy was a charlatan. I disagree. In my mind he was a marketing genius. I must admit to falling for this crazy fad at the time.
By the way, Dahl died on March 23 of this year.