A Golden Penis is a grown man who was brought up being his mama's favorite. My brother was brought up as the Golden Penis because he's the only boy, is the middle child, and was sickly as a child. All of this worked together to make him into a 43 year old man who still lives at home with Mom. The job he just got is the first one he's had in about eight years.
He is most definitely the favored child, and to this day gets away with everything.