potlatch , n :
(Canada, US, also figurative) A ceremony amongst certain indigenous peoples of the Pacific Northwest in which gifts are bestowed upon guests and personal property is destroyed in a show of generosity and wealth. (US, chiefly Alaska) A communal meal to which guests bring dishes to share; a potluck. potlatch v (transitive) To give; especially, to give as a gift during a potlatch ceremony. (intransitive) To carry out or take part in a potlatch ceremony. Today, the fourth Friday in September in 2020, is celebrated as Native American Day in California and Nevada, USA, to honor the cultural contributions of Native American communities.