A pee-on
A pee-on is someone who thinks the pee-pee is a miracle of nature, but really it’s just a glorified pipe for pee.
My mom thinks the pee-pee is a gift from God. It's just a pipe.
My brother called his pee-pee a miracle. I called him a fool.
I tried to use my pee-pee as a paintbrush. It was a disaster.