Jack in the Box Wiki

Santa Claus is a beloved Christmas icon. He manages a team of at least 40 elves who manufacture toys at a workshop located in the North Pole, which are distributed to well-behaved children by Santa on the night of Christmas Eve.

In a 1997 Jack in the Box commercial, Santa angrily bursts into Jack Box's office to accuse him of jeopardizing Christmas because one of his cheeseburgers made his elves too full, putting them behind schedule. Jack retorts that the burger was never made for elves.