The word "tugger" is a slang term meaning someone who is persistent or tenacious in pursuing a goal. However, there are many other synonyms that can be used to describe this same trait. For example, someone who is a "driver" is someone who is always pushing to achieve their objectives. Alternatively, a "go-getter" is someone who is proactive and goal-oriented. Similarly, a "grinder" is someone who is willing to put in the hard work to achieve their goals. Ultimately, there are many different ways to describe someone who is persistent and tenacious; the important thing is to find the word that best captures the specific nuances of that person's personality and behavior.