Jingle Bells

So, you know that alternate version of the jingle bells from your childhood? The one that goes "jingle bells, batman smells" etc? Well, apparently it's from Batman the Animated series.

In the second episode, "Christmas with the Joker," the prisoners of Arkham, including the Joker, are decorating for the holidays while singing Jingle Bells. But the Joker sings his own lyrics:

Jingle Bells
Batman smells
Robin laid an egg
The batmobile lost a wheel
and Joker got awaaaay!

And he hops on the Christmas tree, which turns into a rocket, and escapes from Arkham.

Who knew?