A very bad christmas. You do not get any presents you like or don't get any at all. You spend your christmas somewhere you do not want to be.
I had a shitmas last year at my grandparents house; they didn't even give me anything!
by goperB October 4, 2006
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The consumerism Holliday that took the place of the Christian Holliday of Christmas, in the same way that Christmas took the place of the pagan tradition of celebrating the winter solstice. Shitmas is celebrated by buying others excessive amounts of needless shit, with the goal of expressing the monetary value of your love, through the monetary value of your shit.
Ruth: hey Mark! How was your Shitmas?

Mark: Ah man! It was the best Shitmas yet! My family, friends and I all bought each other so much shit that we had to rent extra storage units, just to fit it all! Now I need to get a second job, to start paying off the debt!
by AnonymousBloke December 19, 2017
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A man who constantly shits and never wipes his ass. He shits anywhere he goes. He is what true peak masculine performance is. He is ascended far greater then Alphas, Betas, Sigmas, Omegas, all combined.
Cringe Beta loser: AHH DUDE WTF?!?!?! YOUR SHITTING ON THE FUCKING FLOOR!!!! YOUR FUCKING NASTY!!!!

Based Shitma Male: I am not nasty, I am a Shitma Male
by DESTROY ISREAL August 29, 2021
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that giant, holiday food induced, dump that we all take on that magical morning of Christmas.
also, if you hate cmas and want it to die and burn ALL the things!, then merry shitmas applies to you as well.
*toilet water splash* merry shitmas to meeee!

first i couldnt wrap gifts properly, then i stubbed my toe, then i banged my knee on that stupid santa light, and i still have to go in to work later today! merry shitmas to me!
by youtube.com/LORDCORINTH December 25, 2011
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The list of all the shit you have to buy for Christmas. This includes Christmas gifts, decorations, the tree, and any food for Christmas dinner or Christmas Eve dinner.
I can't believe how many gifts I still need to buy. It's going to take me forever to get everything on my Shitmas List.

Thanks to Cyber-Monday most of the stuff on my Shitmas List is taken care of. I can take off the rest of the Christmas season off from shopping.
by Monkey_Butler December 9, 2010
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The state of excrement after it has been placed into a bowl, mashed up into a lumpy putty-like substance, melted in the microwave for five minutes and frozen over night. It is often enjoyed with truffle butter as a dessert on Christmas day.
Person A: So, what did you have for dessert on Christmas Day?
Person B: The wife prepared us all some Shitmas Pudding, it was scrumptious!
Person A: .....
by Ignatius Butterworth December 27, 2016
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When you're having anal sex and the person defecates on your penis.
Man, that girl last night shitmas tree'd me last night. I had to scrub for three hours!!
by soha33 September 26, 2010
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