Dream about needing a poo is a metaphor for a desperate need for greater closeness with your father. You are struggling for your independence and autonomy. You may find that those around you are ready to support in your whatever you do or decide. This is a harbinger for an aspect of your own self that you are trying to control. You may be feeling smothered in some relationship.
Needing a poo dream hints regret of what you have done in your life. You have total control over your life. You may be getting your hopes too high. Your dream points at your choices or ambivalence about some situation. You are lacking direction and have no goal of your own.
If you dreamt about needing a poo:
You may have this opportunity if you attend a gathering or function, or perhaps a course of some kind where you have not previously met everyone present. You may get into a conversation with someone radically different from your former amours, but you will also find this person extremely exciting.