Santa Claus eats chocolate chip cookies all night long
delivering presents, and all that chocolate makes him constipated. So on the
day after Christmas, Santa takes Phillip’s to set himself right. It’s their
gift to Santa for all his good work.
(Or the last house he stops at leaves him some Phillip’s,
noting he must have eaten a lot of chocolate chip cookies and Bundt cake while delivering presents. But
they tell him to wait to take it until he gets home; it might be a long sleigh
ride back.)