paint boy
A paint boy is someone who knows so much about paint, it makes your brain hurt. He'll mix colors just for fun like it's his full-time job and you're the idiot who asked him to do it.
I walked in asking for blue paint. He mixed 12 different colors and called it 'the soul of the ocean.' I left with a headache.
He turned my living room into a rainbow just because he thought it was 'cool.'
He made me pick a color before I even knew what paint was.