Christmassing 

Amassing a huge number/an abundance of Christmas presents (for people who want "some little festivity and helping the poor with what's left").

Santa's little Helper: "Santa, you're christmassing like mad. Get some sleep!"

Christmassing by Knecht Ruprecht, the Second December 18, 2011

de-christmassing 

The process of removing Christmas decorations.

The de-christmassing is finally done.

de-christmassing by W3Wow December 30, 2010

christmasing 

When you do anything Christmas-related

mom went christmasing at Ross Dress For Less

christmasing by CrayonEater4259 December 23, 2018

Christmastine 

like a valentine, but durring christmas.

originates from "candy-grams" because they are like valentines durring christmas.

oh don't worry shawna, you are my christmastine this year.

Christmastine by Salvianation December 21, 2008

Christmasing 

The act of celebrating Christmas

"When I wasn't Christmasing, I was watching basketball"

Christmasing by harryyyyy2938u5 December 25, 2021

The CHRISTMASING 

The day after Halloween when all the stores and restaurants come out with their Christmas decorations and themed items for sale. It’s also the day you can start decorating for Christmas because let’s be honest—Thanksgiving is a shitty holiday based on the murder of millions of indigenous American Natives and the pilgrims eventually killed them all with smallpox. Sure you can eat your turkey—but does anyone really decorate for Thanksgiving anymore?

Billy and Brenda went to the store on November 1. Brenda said “Holy shit! Look at all this Christmas stuff!” Billy replied “Duh, Brenda—it’s The CHRISTMASING…” Brenda laughed “oh yea….f those pilgrims!”

The CHRISTMASING by Sleeper indigenous November 1, 2021

Christmasfying 

To decorate the SHIT OUT OF SOMETHING

We’re christmasfying this car for the holidays

Christmasfying by 3KLRBES December 19, 2018