One evening, after a particularly onerous interaction at the drive thru, I decided to invent a new ordering code.
Most orders at McDonald's can be distilled into a five-character code.

Dinner Breakfast
hamburger cheeseburger double cheeseburger chicken nuggets 6 chicken nuggets 9 chicken nuggets 20 big n' tasty crispy chicken chicken mcgrill big mac None promotion quarter pounder double quarter pounder cajun mcnuggets Bacon Ranch Salad - Grilled Bacon Ranch Salad - Crispy California Cobb Salad - Grilled California Cobb Salad - Cripsy filet of fish chicken caesar shaker chicken chef shaker chicken garden shaker egg mcmuffin sausage mcmuffin sausage mcmuffin with egg bacon egg and cheese biscuit sausage biscuit None breakfast burrito steak, egg & cheese bagel ham, egg and cheese bagel bagel hot cakes and sausage platter big breakfast sausage burritos McGriddle Bacon, Egg & Cheese McGriddle Sausage, Egg & Cheese McGriddle Egg & Cheese promotion
None small fries medium fries large fries supersize fries hash browns promotion None Small Medium Large Supersize None water coke dietcoke sprite hi-C Dr. Pepper orange juice vanilla shake chocolate shake strawberry shake shamrock shake milk coffee promotion none apple pie sundae mcflurry chip cookies cone parfait Dippin' Dots promotion

Lomcximo