Imagine you are in a toy store and you see lots of different toys that you want to play with. And you really like a certain toy, so you ask your mom to buy it for you.
Now imagine that instead of just one toy, there are lots of the same toy in the store. These toys are all the same but you can choose to play with any of them. Each toy has a different name and you can pick which one you want to play with.
This is kind of like a multiton! It's a design pattern that helps you create objects (like toys) that can have many instances with different names. For example, you could have a multiton that represents different colors, and create an instance for each color you need.
So instead of making a new object every time you need something, you can just reuse one of the existing objects in your multiton. It's like having a big toy box with lots of the same toy inside, and you get to pick which one you want to play with!