Polish-speaking children and their slang

Hello,

This is my first, and probably last time posting here; I had a quick question regarding slang in Polish. I am writing a fictional story, and in it, there is a child whose primary language is Polish.

What would a young Polish child call his mother and father? It seems to me that in English, as well as a few eastern-European languages, "Momma" and "Papa" are almost universal.

Is such the case in Polish? Would it make sense if I had the boy calling out, "Momma! Papa!" ?

Mama and Tatuś are quite likely

mama and tata

or

mamusia and tatuś

That sounds even better esek

mamo?

two more:

ojciec and matka (more official...)

stary and stara (and this is slang... some people call their parents like that... personally i have never used any of this and I will not use .. it's just not nice in my opinion)

stary/stara - old

mamuśka i papcio

Can't say I've ever heard that one.

On the other hand, if the child is calling to them, the vocative might well be used

mamusiu! tatusiu!

or, more simply (but less emotionally)

mamo! tato!

That's because P3 makes it up as he is going along.