It represents haraam wealth.
Passing of Stools:
Seeing oneself passing stools means he will lose wealth equal to the extent of stools passed. Or he will conduct himself in such a manner as will cause him harm. If so much stools are passed that it takes the form of mud, rain or floods then there is no good to be expected from such a dream. Perhaps it could mean he will be terrorized by the authorities.
Passing of anything besides Stools:
The passing of anything unusual such as blood, worms, lice, pus etc. denotes that the observer of the dream will suffer loss in his wealth and family accordingly.
