Palming off is a phrase that is used to describe the act of fraudulently passing off counterfeit or inferior goods as genuine or high quality products. There are several synonyms that can be used to describe this unethical act, including deception, fraud, scam, trickery, cheating, and swindling. Other similar phrases that can be used in place of "palming off" include passing off, selling under false pretenses, misrepresentation, and counterfeiting. These synonyms are important to keep in mind when detecting fraudulent activity and protecting oneself from being a victim of such deceitful practices.