Your fridge is full of alcoholic beverages and mixers, but no real food.
When you use your meal plans, you buy gatorades in bulk in preparation to mix with your vodka or you sneak 5 bottles in your backpack into your dining hall to fill with your mixer of choice whether that be lemonade or Coke. Pick your poison.
You no longer even get hungover because your body has become so accustomed to high amounts of alcohol.