To see the toilet in a dream could be related to the actual physical need to urinate in your waking life. Probably you are unable to urinate while sleeping, therefore you see a toilet in a dream. On the other hand, the toilet is the place where we get rid of the stuff that is no longer in need, therefore the dreamer is also getting rid of negative people, emotions or thoughts. If you cleaned the toilet in a dream, then it indicates The self respect you started to lose. If the toilet is overflowing, then it denotes to your overfull emotions.
Read more about dreaming of Toilet in other dream meanings interpretations.