It's like dreaming about the toilet.
Dreams are an illusion. For example, in Van Gogh's paintings and dreams, something slightly related will represent what you think. But a person's logic is unreasonable, so even dreaming of a thing is different.
Different people should have different explanations. If you are an ordinary person and only regard the toilet as a private place to pee, then dreaming about the toilet represents your private world and inner world. You dreamed that a person was in the shit. This abnormal thing in real life often represents your inner desire for integrity and kindness. You wake up when you talk to your uncle, which means you are a little angry. You may worry that your body may be angry in a chaotic logic and can't talk much to maintain your health. Dreams often have chaotic logic. This is because these logics may have been thought of when I was a child, but they just don't want to give up this unbound association because of secular rules (maybe this is just subconscious, I didn't realize it). This shows that you are a thoughtful person, and you usually ponder over some things.
These are just my guesses. In fact, from my point of view, dreams are actually some combinations of myself and the world. This cannot predict what will happen in the future. But you can get a glimpse of your personality and what you have experienced from your dreams, so that you can infer more reliable results.
Dreams are the wealth of insight and self-understanding, and the mirror of self-transcendence. Only those who are good at exploring themselves with dreams can make use of this wealth.
If you want a superstitious answer, there are many opinions on the internet, depending on which one you like ... What I said earlier is my own research with reference to certain health knowledge, which has nothing to do with superstition. Actually, you can make one up yourself. Anyway, superstitious people are talking nonsense
The reposter should indicate the source and despise copying and pasting to answer questions.