"Making someone pay through the nose" is an idiom used to describe a situation where an individual has to pay a large amount of money. There are several synonymous phrases that can be used in place of this idiom, such as "bleed someone dry," "extortionate cost," or "exorbitant fees." Another phrase that can be used is "rip off," which indicates that the cost is unfair or too high. Similarly, "overcharging" means that the individual is being charged more than the market value or standard rate. Other alternatives include "taking advantage of," "fleecing," and "exploiting." These synonyms indicate that someone is being unfairly charged a large sum of money, which can be a significant burden.