jumbo

An jumbo usually refers to something that's extremely large or extra big.

You might hear people talking about "jumbo shrimp" at a restaurant, but they're not referring to actual giant shrimp. They mean that the portion of shrimp you get is bigger than usual. It's like calling a big soda cup a "giant size." You can also find jumbo boxes of cereal or even jumbo-sized balls for playing sports. The idea is that something is bigger and more generous, but it's not always related to its actual size.