potlatch

Definitions of potlatch
1

n a ceremonial feast held by some Indians of the northwestern coast of North America (as in celebrating a marriage or a new accession) in which the host gives gifts to tribesmen and others to display his superior wealth (sometimes, formerly, to his own impoverishment)

Type of:
feast, fete, fiesta
an elaborate party (often outdoors)
ceremonial, ceremonial occasion, ceremony, observance
a formal event performed on a special occasion

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