Dumbest line in a Christmas song?

djslack thought this was worth mentioning said
10

My vote is for a line from “Little Saint Nick” by the Beach Boys. Of course “Christmas comes this time each year” – thanks for explaining how calendars work.

I know there are other contenders out there; this one just happens to be stuck in my head right now. What’s your vote for the dumbest line in a Christmas song?