From our friends at the National Lampoon: Kung Fu Christmas
JibJab: Santa Claus
One of my favorites, The Monkees:
Two of my favorites demented songs not mentioned yet (66 responses before we got to “Santa Lost a Ho”?)
I Saw Daddy Kissing Santa Claus by Kip Addotta
I Yust Go Nuts At Christmas by Yogi Yorgison.
Then, not necessarily demented, but actually becoming popular (still different)
Christmas Wrapping by The Waitresses
And, a great version of
You’re a Mean One, Mister Grinch by Small Town Titans
Oh, and
Damn! You’re lucky! My wife and daughter have been listening to the local “Lite” station that has been playing 24-7 Christmas music since November 2 (they started late this year); my wife also records every Halmark / Lifetime Christmas movie that she hasn’t seen yet. Talk about a sure fire way to loose the Christmas spirit!
Here’s a parody of those chipmunks:
Well, that’s not demented at all – it’s absolutely outstanding! Thanks for sharing it!
Song starts at 0:42.
He does have musical talent, and he can carry a tune. The first meaning there is “Can’t sing well” which is much more general and is the result of people not caring about what “carry a tune” actually means. If you want to use unnecessarily vague language, I can’t stop you.
Hey, it wasn’t my idea. I checked the meaning with Google literally right before posting this and found that.
A good friend of mine, a fellow Dylan fan, sends me this. And of course it belongs in this thread, it’s hilarious… Best comment on youtube: “This is the song that sealed his destiny to receive the Nobel Prize for Literature.”
Zu zu zu zu zu zu…
An entire album of Christmas Season dementia from the Brothers Barnes -
… Of course, I would never harm a reindeer …
I Had Sex With Santa - Barnes & Barnes
I Wish It Was Christmas Today - Turn it up to eleven!
Happy Xmas (War is Over) - Wow! Miley Cyrus has an amazing set of lungs. If this is any indication, she’s wasting her talent on crap when she should be fronting a rock band. At the very, very end, well after the music has stopped, she gives her personal reflection on the performance. That, alone, is worth the price of admission.
From 2013, Darlene Love “Christmastime For The Jews”
They got Darlene Love for this, it is amazing.
^ They can eat in Chinatown and drink their sweet-ass* wine. 
*(Not “Swedish,” like some lyric sheets suggest.)
I love the Jon Stewart line myself.
See Fiddler on the Roof with actual Jewish actors. 
This is some of the best parody lyrics, ever. Darlene Love adds an incredible authenticity. She is in the new Netflix Christmas Chronicles (2) film whooping it up with Kurt Russell.