The winter holidays, combining winter SOLSTice, hANUKKAH, and christMAS. Use to cover yourself when you aren't sure which holiday the person you're addressing prefers to celebrate.
PERSON A: "Merry Christmas!"
PERSON B: "Happy Hanukkah to you!"
PERSON C: "I'm a Pagan. Merrie Solstice!"
YOU (with big peacemaking smile): "Merry Solstanukkahmas to all!"