Late binding is like when you have a toy box full of toys, but you don't know exactly which toy you want to play with yet. So you're just sitting on the floor looking at all the toys and then finally you decide to pick one out.
Now, imagine that the toys are actually different programs or computer code that you might want to use. Late binding is when the computer works the same way as you when picking a toy. It waits until you tell it which toy (program) to use and then it gets it out and starts playing with it.
This is different from early binding which is when the computer picks the toy (program) right away without waiting for you to choose. So with late binding, you have more flexibility to choose which program to use and when, just like when you pick a toy from your toy box.