Michelle is gobbling down her spaghetti. As you can see, it's messy, and bad manners, to gobble food. She really needs to slow down and chew, because she might choke.
Finally, you can "gobble" something that isn't food! You might gobble up books, meaning you read them really quickly. You might say that a fire gobbles up a forest: the fire isn't really "eating" the trees, but it seems that way because the fire is burning through the trees in a fast, messy way.