Palm Off Meaning
(idiomatic) To sell or dispose of (something) with the intent to deceive; to attempt to pass off a counterfeit or inferior product as genuine.
Example: 1871, Mark Twain, Journalism In Tennessee,  or 
The inveterate liars of the Semi-Weekly Earthquake are evidently endeavoring to palm off upon a noble and chivalrous people another of their vile and brutal falsehoods...
1922, James Joyce, Ulysses, Episode 18
...the old mangy parcel he sent at Xmas a cottage cake and a bottle of hogwash he tried to palm off as claret that he couldnt get anyone to drink...
1963, United States Code Annotated 
(p.359) ...no one is to be allowed fraudulently to palm off upon the public his goods as those of another.
(p.379) It is a fundamental rule that one man has no right to palm off his goods for sale as goods of a rival dealer...