dechristmasizing 

The process of taking down all the Christmas decorations after Christmas is over.

I have the major chore of dechristmasizing the house until next year when it gets christmasized again.

dechristmasizing by farrellsouth December 30, 2013

dechristmasing

The process of removing all Christmas decorations from your house, Christmas tree, etc. It is usually a long process, often done the day after Christmas.

"Hey Mike what are you doing on your ladder?"
"I'm dechristmasing the top of my house!"

dechristmasing by Sexy Box January 3, 2009