To dream of overalls symbolizes how you go about getting what you want.
If the overalls were torn or dirty, you need to take a more logical (and less emotional) approach to your problems.
If they were tight or small on you, you may feel suffocated in a relationship – speak up.
If they were too big, you are lacking confidence. Perhaps you have been placed in a role you are not ready for.
If you dreamed of seeing someone else wearing overalls, you are concerned about your social status, and how you present yourself to the world.