He’s the biggest, so if the other kids are out of line he unhinges his jaw and consumes them

I figured it had something to do with eating and I found this:

Jaws is an expert on nature and the outdoors, as well as navigation. He is very socially aware and caring, and especially in regards to the natural environment. He is also occasionally presented as a voice of reason, retaining a cooler and more normal disposition in the wake of other members’ antics or strange occurrences. His name is derived from his older characterization, in which he was said to be the Super Official Burger King Quality Taste Tester, as well as an expert on food, specifically the food served at Burger King. However, these details were largely ignored in later materials.