candybalism

When you run out of candy pass out on Halloween, so you go trick-or-treating in order to restock your candy supply.

Instead of going to the store, you hunt your neighbors' candy. Other's candy must be sacrificed so your house's supply can be sustained.

Dude! We're almost out of candy! We have to resort to candybalism. Go trick or treating so we don't have to go to the store.