To dream of a urinal represents a disorderly attempt to relieve yourself of problem or situation. You may have found a way to solve a problem, but it's sloppy or unpleasant. Not caring about anything except dealing with your problem. A urinal may reflect desperation or low standards in resolving conflict.
To dream of pooping in a urinal represents a attempt to relieve yourself of a problem that places the burden on someone else.
*Please See Public Bathroom