deChristmasfied 

To take down all Christmas decorations and tree.

I just deChristmasfied my home.

deChristmasfied by =JoJo= January 2, 2012

Dechristmased 

To remove all signs of holiday cheer from your home and get back to "reality."

I spent all day yesterday and dechristmased the house

Dechristmased by whack-0 January 4, 2010

dechristmastised 

To be overloaded with and subsequently reject all Christmas cheer, carols and paraphernalia.

I've been to the mall and I've totally been dechristmastised.

dechristmastised by GoldenPrincessKitty April 3, 2016