The multi-religious or non religious version of Christmas. X being the variable 'holiday of choice', or even lack there of. This holiday is celebrated similarly to Christmas, but without the christian beliefs. It is a time of gift giving and spending time with family.
Atheist Jane: Merry X-mas!
Christian Jim: Hahaha, since you're celebrating Christmas it therefore means you believe in Jesus Christ!
Atheist Jane: No way! the X in X-mas can represent anything, not just Christianity so ha!
Christian Jim: touche.
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