The term "golddug" refers to a person who is only interested in a romantic relationship for financial gain. There are various other words that can be used as synonyms for this type of behavior, such as "gold digger," "fortune hunter," or "sugar baby." The term "opportunist" can also be used to describe someone who takes advantage of a situation for personal gain. Other synonyms for golddug behavior include "mercenary" and "calculating," which indicate a person who is motivated primarily by self-interest. Regardless of the terminology used, it is important to be cautious of those who may be seeking to exploit you for financial gain in a relationship.