(noun) a person who sells quack medicines from a platform / (noun) a boastful unscrupulous pretender; charlatan / (verb) to beguile or transform by trickery / (verb) to play the mountebank
In front of Hitler, an anti-master of the word more ruthless than he was--an actor, mountebank, declaimer more mesmerizing--Kraus fell silent.
buys a love potion from a mountebank