Okay, so imagine you have a really cool toy, like a big toy truck. Now, you live in Australia and you bought this truck from a store here. But, there's a store in America that sells the same truck for cheaper.
Your mom or dad might think it's a good idea to buy the truck from the American store and bring it back to Australia to save some money. This is called parallel importing.
Basically, it's when someone buys a product in one country and then brings it to another country to sell it there. This can be a good thing because it means people can save money by buying things from other countries.
But, sometimes companies don't like this because they want to control where their products are sold and make sure they're sold for a certain price. So, they might try to stop people from parallel importing their products.
So, that's what parallel importing is, it's buying something in one country and selling it in another country. It can save you money, but companies might not like it.