Pee-pee

I have to go pee-pee.

I've got a big pee-pee.

My pee-pee hurts.

[…]while passing the sponge over the upper part of the little fellow's thighs, the nurse cried out, "O, doctor! be very careful—don't touch his pee-pee—it's very sore;" and upon examining his penis I found it in a state of extreme erection.

A pee-pee for making Wee-Wee.

Using the word familiar to Claude[…], I said that he seemed to be afraid that he would lose "his pee-pee", since he imagined that his sister and his mother had lost theirs[…]

While washing her daughter's hair, Suzie looked up and asked her if she would wash her "pee-pee" too.

When asked if Hubie touched her pee-pee or if she touched Hubie's pee-pee, she repeatedly replied, “No.”

She has also said her dad is mean and hurt her pee pee. She ask^([sic]) a lot about if people are going to look at her pee pee (i.e. Doctors, different apts. we go to, that is her first question to me).