Guys come and brainstorm holiday names with us!

I'm a bit stumped on holiday usernames for myself! The obvious joke I can think of is some pun with the Greek letter Chi, which is used for the abbreviation X-mas (Chi was used a shorthand for Christ). I feel silly though doing that, since I'm not actually Christian. Anyone have any ideas?

If anyone else needs holiday name help, feel free to post here!

ETA you guys rock. 34th street, here I come!