The potlatch is a ceremonial event traditionally associated with Indigenous cultures of the Northwest Coast of North America, particularly among groups such as the Coast Salish, Kwakwaka'wakw, and others. During a potlatch, hosts demonstrate their wealth and status by giving away or destroying valuable items, and it often includes feasting, dancing, and storytelling.
While potlatch celebrations are not associated with American Indian cultures of the Eastern Woodlands, Great Plains, or Southeast, each of these regions has its distinct ceremonies and practices. If you meant to refer to a specific culture in the Northwest, that would be correct.