As shocking as it may be, I did break a 20 year spell and have a hamburger (In and Out less), as further shocking as it may be this post is not about my eating it. It is about the culture and "secret menu". If you think ordering at Starbucks is difficult, you haven't hung out with Southern California people who start spewing the an odd language that isn't even on the menu.
So breaking news:
Double Meat, Grilled Cheese, 3x3, Protein Style, 4x4, Animal Style, Brick