When one cannot fall asleep due to the sheer excitement of what is to come the next day. A common case of children not being able to fall asleep on Christmas Eve for the excitement of seeing what toys they will unwrap the next morning.
I was suffered from Christmas Eve Syndrome last night because I was too excited to see my girl the next day.
by Scott 8/29 January 10, 2009
Get the Christmas Eve Syndrome mug.
n. Oxymoronicly named period alluding to the daylight hours prior to Christmas Eve. Quite an acceptable coinage despite the objections of some opinionated pedants. An alternate etymology comes from the traditions of the Armenian Orthodox church which speak of the Bethlehem innkeeper's wife, Evangelina, who convinced her husband to allow Mary to give birth in their stable. A feast day in her honour was declared on the day preceding Christmas. Christmas Eve Day, a time for quiet contemplation and fasting, is still celebrated in Asia Minor and much of Central Alberta.

...........................
What are you planning for Christmas Eve Day?

I thought I'd stock up on diet coke and pizza for tomorrow.

Well watch out for the language police!
by gnostic1 December 24, 2011
Get the Christmas Eve Day mug.
The day before Christmas Eve, 2 days before Christmas.
Stay away from the malls on Christmas Eve Eve.

Today is Christmas Eve Eve.
by IBKTMC December 23, 2006
Get the Christmas Eve Eve mug.
The day before Christmas Eve. All "Eve" holidays are better than the actual holiday because the day does not have to live up to the expectation of the real holiday. People are also usually off work on "eve's" so it is like everyones Friday night!!!
Happy Christmas Eve Eve!! Let's get Hammered!!!
by LindsNicP December 23, 2009
Get the Christmas Eve Eve mug.
December 23, the day before Christmas Eve. It's AKA Christmas Eve Eve and other names.
The stores and malls are open real late tonight because today is Pre Christmas Eve and last minute holiday shopping is a hectic crazy mess. If you don't need to go out tonight then STAY HOME. Merry Christmas.
by I Saw U2 Live Twice December 24, 2009
Get the Pre Christmas Eve mug.