Answer:
tldr: a goodyear is a blimp company, possibly size reference
Explanation:
hi there!
i've not read the book but:
goodyear is a company known for having advertising blimps. possibly it could be a reference to her size?
a quick search shows a quizlet that says the answer is
"Katie was so big, like the blimp. pg. 15"
hope this helps!
