If you dream of a snake coming out of the toilet, it mean that you deal with your inner fears and problems, refers to an emotional barrier that you are building up around you. The toilet is usually associated with cleansing and liberation, so the dream indicate that you are trying to rid yourself of emotional burdens and toxins, denotes your connection to humanity.
A snake coming out of the toilet also indicate this that there are things in your life that you need to let go of, a signal for your resourcefulness and ingenuity. Perhaps there is a relationship or situation that is damaging you and you need to get rid of it in order to move on, a premonition for wisdom, intellect, understanding and rationality.
If you are dreaming about a snake coming out of the toilet, you should think about what is going on in your life and try to figure out what it mean, refers to some aspects of your life are out of your control.
It is also important to note that that in many cultures snakes are seen as symbolic of wisdom, renewal and transformation and that they seen as a positive sign, points at an extension of your own self that you are projecting.
In summary, dreaming of snakes, that come out of the toilet indicate that you are dealing with your inner fears and problems, that you need to let go of things in your life and that it time to free yourself from toxins and burdens, suggests simplicity, comfort and solace.