An Ugly Sweater Party is a festive gathering where guests wear intentionally unattractive or humorous holiday sweaters. These sweaters often feature bright colors, quirky designs, and playful themes related to the holiday season. The event typically takes place during the winter months, often around Christmas or New Year's. Participants often engage in activities such as games, contests, and food sharing. A popular tradition is to hold a contest for the ugliest sweater, with prizes awarded to the most creative or outrageous designs. The atmosphere is usually light-hearted and fun, encouraging laughter and camaraderie among friends and family.