Top Definition
Christmas for Atheists. Athemas is celebrated on the 21st of December (the Winter Solstice), and entails everything that Christmas does, minus the "Christ" part.
Ansel's family are Atheists, so they get to open their presents early this year, on Athemas day. Luckily, I'll be laughing at them when they're in HELL!!
by fubsish November 07, 2009
5 Words related to Athemas

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