Christmas and New Year's Eve are two of the largest items on anyone's social itinerary in a year. Usually they involve much family contact, drinking and general merriment. When combined however, they make reference to the fact you went and had the best time (usually night) of your life.
Dude1: "Hey how was your party at college?"

Dude2: "It was great mate, I gave them Christmas and New Year's!"
by cypressjim February 4, 2010
Get the Christmas and New Year's mug.
A departure from tradition; simpler and more casual
"You don't have to get dressed up and make a five course meal. It's New Christmas... we're ordering in and eating in our PJ's!"
by Ms.Grizzace January 1, 2022
Get the New Christmas mug.