Snacirema

A psychological condition, most commonly found in citizens of the United States and general marijuana enthusiasts, commonly referred to as the munchies. Snacirema urges the afflicted to seek out their favorite foods, oftentimes easy-to-eat snacks, in larger than normal quantities. Side-Effects of snacirema include abdominal discomfort, weight gain, constipation, insulin resistance, and other metabolic deficiencies.

Larry: "I've gained 12 pounds over the last month alone! What gives?"
Doctor: "It seems a case of snacirema has increased your appetite more than your body can handle."
Larry: "I should probably cut back on the oreos, then..."