hack-tow rule of half
a rule so strong it makes you and your best friend argue over the smallest piece of food or drink, and you end up splitting it in half even if it means you both get stuck with the worst part
We split the last piece of pie and I got the crust and he got the filling
We split the last pizza and I had to eat the cheese and he had the dough
We split the last drink and I had to drink the bottom of the can and he had the top