The dream of washing your hands is a dream that suggests that you will be relieved of the bad things that have been going on. If your hands were less washed and you were offended, it means you were in a state of anxiety because you couldn’t get them off completely. If you’ve been hanging out with bad people, you’d better quit as soon as possible. It is in line with the expression “washing your hands” when you’re involved in bad things in real life.