Definitions for palm off
foist off, palm off, fob off(verb)
sell as genuine, sell with the intention to deceive
To sell or dispose of (something) with the intent to deceive; to attempt to pass off a counterfeit or inferior product as genuine.
Origin: “Palming” an object (as in a playing card) is a type of sleight of hand, secretly removing the desired article and leaving only the undesired one.