The toilet and the bathroom have nothing indecorous, unmoral, or dirty in dream meanings, but just the opposite meaning, because that are the places where we clean our body inside and out.... (Toilet)
Your dream mainly consists of these symbols: dirty, toilet. For deeper and better understanding it's recommended to read the individual meanings of each symbol. To find out what other interpretations, that are based on distinct character's symbolism, the dream about dirty toilet have, click on these links: dirty, toilet, or you can search manually by using synonyms of these words.