Defensive eating is strategically consuming food for the sole purpose of preventing others from getting it.
It would frighten others if you choose to lick your food or the peripheral circle of your cake first to define your manor. You could also eat the more delicious part first or pretend to frown when you eat it, belying the actual strength of your food. Only do you use those strategies to protect your food can you be a better foodie!
In order to prevent his friend from getting the palatable meal, Michael used defensive eating to consume his dishes.