You'd have to adjust that by country since not all countries do Xmas...
Whohohohow, Happy Hannukah!
Whohohohow, Happy Kwanza!
Whohohohow, Happy Ramadan!
Whohohohow, Happy Boxer Day!
etc.
Don't ask what sort of Chunks they are, you probably don't want to know. Blowing Chunks since Season 4!