Hi Again!
Found this at dream website,aisling.com :
Urinating eliminates waste that would harm the body. In dreams it symbolizes the need to eliminate an issue from the past or a negative influence in the present. For example, to dream of urinating in the shower while your partner enters and leaves the shower or bathroom is a request to eliminate the negative influence of your partner leaving you. It can also mean you need to (deal with) eliminate the aspects of the relationship that invade your personal space.
To urinate in the back of a pickup truck is a request to eliminate the negative influence you picked up from your father (truck) in the past (back of truck).
So you are being told to eliminate on the ground.
In other part you are eliminating through a shower-type drain
and realize there is a woman living there.
I can only interpret this dream by comparing the two.
The first may be a need to eliminate some negativity about your heritage. When my grandparents immigrated here there
was a very distinct social order. (We've all heard the dumb polock jokes.) So you may feel you need to deny your heritage somehow, or have negative feelings built up
over your nationality. If that is the case, this dream would be asking you to eliminate that negativity.
The second dream to me indicates a subconscious program.
You are peeing on some aspect of yourself. Not only that,
at first you are not even aware of the womans presence.
Her being underground, and your own unawareness seem to point that way. If you recognize the woman it would help you figure out just what negative stuff you're facing.
Or she could be a symbol for women in general. (I was the 3rd girl and felt I sh/ve been a boy. My attitude towards
females in general wasn't great but feel it's improved a lot with age.)
So maybe this dream is asking you to eliminate some negativity you hold about females?
Then there's this idea that the first dream is saying
give it back to the earth....
Instead of putting your negativity onto someone else,
as shown in other dream.
I have a meditation on CD, it's Marie Diamond and she says
Let the universal energy wash down your body taking all the negativity and giving it back to mother earth, who will transform it back into beautiful energy.
Your dream reminded me of that CD,
maybe I sh/go listen to it...
Marj