An abbreviation for Christmas, from the Greek spelling of Christ, the first letter of which was chi ("X").
by Alexei December 23, 2003
It just means Christmas. It's easier to write if you put an X. No one is trying to take the precious CHRIST out of Christmas. For God's sake, lighten up. Your religion's not going to die because we say Xmas instead of Christmas.
"Merry Xmas, Mr. SupersensitiveChristian."

"Get out of my house, Devilchild."
by Ughguggeugghghhghghg December 31, 2005
The festive holiday in the tv show Futurama. Having created a robot Santa to carry out the work of a real Santa, an error in his programming causes him to judge that everyone is naughty. Xmas is therefore a holiday of fear, where all hide from Robot Santa as he tries to kill everyone he finds on xmas day.
The xmas song! (to the tune of Santa Clause is coming to town)
He Knows when you are sleeping
He knows when you're on the can
He'll hunt you down and blast you're ass from here to Pakistan!
You Better not move you better not move
You're better off dead, I'm telling you dude
Santa Clause is gunning you down!

merry xmas everybody!!!
by Dr Wally December 19, 2010
Shortened form of Christmas. Some will tell you that this abbreviation "takes the Christ out of Christmas" but you should not listen to these people since they are probably right-wing zealots who will try to convert you.
Xmas makes poor kids cry when they realize the rich kids get all the good toys, all the good clothes, and all the good cars.
by kate November 22, 2004
Abbreviated form of Christmas. The letter "X" was used by ancient Christians under persecution as a sign of their faith, being a physical representation of the cross. Underground meeting spots usually had an "X" marked on the sidewalk in front. Since celebrating Christmas was illegal and could result in martyrdom, Xmas was an acceptable name for the holiday.
Some super-conservative Christians are so uneducated on their faith's history that you wonder how they can have the balls to persecute others based on spelling, i.e., X-mas.
by bec March 28, 2005
a shorter version of the word Christmas . criticized for it's shortness and the removal of the word Christ . using it when a priest is around is not recommended .
uncool Frank : this Xmas will be bitchin' .

Peter the uptight catholic : May the Lord murder you and your family , my son .
by Bruce008 December 26, 2011
Word that overly sensitive non-Christian people use to take the prefix "Christ" out of Christmas. That would be like Christians referring to Hanukkah as x-ukkah, or saying x-dha instead of Buddha. It's pretty stupid and people should just use the correct term. No one says you have to believe in order to write or pronounce an important holiday for a certian group of people correctly.
You're invited to an x-mas party at my place in mid-town.
how about...
You're invited to a Christams party at my place in mid-town.
or better yet..
You're invited to a holiday party at my place..
by observant December 1, 2004