and if the fridge is dusty, will the stomach be the same...?
so, if "dusty" means there's nothing in the fridge, then there's nothing to eat, and that's why a person's stomach is also "dusty"...
but there's also a second option, which is this:
a dusty fridge, i.e., it's dirty... therefore, the food in it is also dirty (if, of course, the dust is not only on top, but also inside)... and since the food is dusty, the person's stomach is also dusty, because they eat this dusty food...
so, the title of the topic could also use the word "stomach".