So, imagine you have a really big house with lots of rooms and lots of people living there. You're the boss, and you want to make sure everything is running smoothly and everyone is doing their jobs.
But you can't be everywhere all the time, so you hire someone to be your "majordomo." A majordomo is like your right-hand person, who helps take care of things when you're not around.
They might make sure that everyone is doing their chores, or that the kitchen is clean, or that the beds are made. They might also help you plan big events, like parties or dinners, and make sure everything goes smoothly.
Basically, a majordomo helps you keep everything in your household running smoothly, so you can relax and enjoy your home without worrying about all the little details.