To continue the Holiday theme, here's the classic "Jingle Bells" with a Buffy spin.
Dashing through the
graves
In an old cemetery
Looking for vampires
It's kind
of scary
The dead that feed on blood
Don't even have a
prayer
Cause pretty soon they'll run into
Buffy the Vampire
Slayer
Oh, jingle bell
Mouth of hell,
Buffy saves the
day
With her Watcher, Xander
And two witches who are gay
Hey, jingle bells
Caleb smells
And it's safe to say
There isn't a monster that Buffy cannot slay
There was
the Master and
Angelus, Spike and Dru,
Then Faith and the
Mayor
Adam and Glory too
The Trio of the nerds
Dark
Willow and the First
Buffy's kicked the asses of
The best of
the worst
Oh, jingle bell
Mouth of hell,
Buffy saves
the day
With her Watcher, Xander
And two witches who are gay
Hey, jingle bells
Caleb smells
And it's safe to say
There isn't a monster that Buffy cannot slay