The term "easy mark" refers to a person who is easily deceived or taken advantage of. There are several synonyms for this phrase, including "sitting duck," "dupe," "gullible person," "pushover," "patsy," "soft touch," "victim," and "fool." Each of these words describes someone who can be easily taken advantage of, whether by a con artist, a scammer, or a fraudster. It is important to recognize when someone is attempting to take advantage of you, and to be aware of the signs of a potential scam or fraudulent activity. By staying vigilant and cautious, you can protect yourself from becoming an easy mark.