Learned this from Haywire Brack, my brother of the Rose Tattoo;

Dashing down the aisle
With an empty pocketbook,
I can't afford to buy,
So I'll just have to look,
Bells on registers ring
Making me uptight,
I guess I'll have to go and rob
A liquor store tonight!

Stick em' up, stick 'em up,
Give me all the loot,
Give all the cash and checks,
And the credit cards to boot,
Stick 'em up, stick 'em up,
Christmas should be free,
I can't beat inflation,
But inflation won't beat me!

To the tune of JINGLE BELLS of course.