"O Holy Night" is a well-known Christmas carol sung by Eric Cartman in the Season Three episode, "Mr. Hankey's Christmas Classics". Cartman's version of the song makes mention of his excitement to receive presents on Christmas morning. During a promo leading up the Season One premiere of "Mr. Hankey, the Christmas Poo", Mr. Garrison gives Kyle permission to shock Cartman with a cattle prod if he sings the song incorrectly.
And, O holy night! The stars are brightly shining,
It is the night of our dear Savior's b-b-b-birth.
O holy night! The something something distant
It is the night with the Christmas trees and pie.
Jesus was born and so I get presents.
Thank you, Jesus for being born.
On your knees!
(On your knees)
(Can't you heaaar)
The angel's... something
The night when I get presents;
Beeef-caaakkkeee, O night;
O night devine!