Hey there kiddo, have you ever seen a person who looks really big and round like a sumo wrestler but then you find out it's just a regular person wearing a suit? That's called a "fatsuit"!
A fatsuit is like a costume that is designed to make a person look bigger or heavier than they really are. It's often used in movies or TV shows to make actors look like a certain character, such as a sumo wrestler or a jolly Santa Claus.
The way a fatsuit works is pretty simple. It's made out of special materials that are thick and bulky, kind of like a cushion. When a person puts on the suit, it adds extra padding to their body, making them look rounder and fuller. Sometimes, the suit will even have extra layers or "flaps" that can be moved around to create the appearance of rolls or folds in the skin.
While fatsuits can be fun and entertaining to wear or watch, it's important to remember that they're just costumes. They don't change anything about a person's actual weight or health. So even if someone looks big and heavy in a fatsuit, they might actually be very fit and healthy in real life!