The word "dirtballs" is a derogatory term used to describe someone who is unclean and unkempt. There are many synonyms for this word, including grimeballs, muckrakers, filthbags, sludgepots, and sewer rats. These words all convey a sense of disgust and disapproval towards someone who is dirty or unhygienic. However, it is important to remember that everyone deserves respect and kindness, regardless of their appearance or habits. Instead of using hurtful words and labels, we should strive to treat each other with empathy and understanding, no matter what our differences may be.