Petit salé is a fancy way of saying "small salted meat." It's basically a type of meat that has been cured with salt so that it can last longer and taste really good!
To make petit salé, the meat is first covered in salt to help it dry out and remove any excess moisture. This is important because moisture can lead to bacteria growth, which can make the meat go bad.
After a certain amount of time (usually a few weeks or months), the meat is rinsed off and then cooked. You can cook petit salé in lots of different ways -- some people bake it, some people boil it, some people even fry it! No matter how you cook it, petit salé tastes amazing and is a very popular dish in many countries.
So if you hear someone talking about petit salé, just remember that they're talking about a special kind of salted meat that's been cured to make it taste extra delicious!