A "Colombian Christmas" is defined by its food, often referenced in songs and celebrations: Juliana Navidad A La Colombiana Chiva Culiona
You meet in a plaza, usually around 7:00 PM. The Chiva pulls up, horns blaring. You are handed a Santa hat or a fluorescent necklace. The Aguardiente bottle is opened immediately. There is no "warm-up" period; the party starts the second the engine turns over. Juliana Navidad A La Colombiana Chiva Culiona