No, it doesn't. It means "Your money is not legal tender here, and you can't buy anything with it, no matter how much you have." I believe that this might be a reference to the time when multiple currencies were in circulation in the US. The currency in use in a given area would most likely be that of the nation from which most immigrants had come -- pounds Sterling in New England or Spanish dollars in Florida, for example. It would be easy, then, to practice discrimination by rejecting certain currencies. Today, the meaning has mutated to that of "I won't sell you my wares because I don't like you, so get out."
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No, it doesn't. It means "Your money is not legal tender here, and you can't buy anything with it, no matter how much you have." I believe that this might be a reference to the time when multiple currencies were in circulation in the US. The currency in use in a given area would most likely be that of the nation from which most immigrants had come -- pounds Sterling in New England or Spanish dollars in Florida, for example. It would be easy, then, to practice discrimination by rejecting certain currencies. Today, the meaning has mutated to that of "I won't sell you my wares because I don't like you, so get out."