名詞 potlatch:

1. 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)

pot.latch

n.（名詞）
A ceremonial feast among certain Native American peoples of the northwest Pacific coast, as in celebration of a marriage or an accession, at which the host distributes gifts according to each guest`s rank or status. Between rival groups the potlatch could involve extravagant or competitive giving and destruction by the host of valued items as a display of superior wealth.
炫財冬宴，冬季贈禮節(jié)：西北太平洋沿岸的某些美洲印第安人的慶祝宴會，如婚慶或就職慶典。在宴會上，主人會根據(jù)每個客人的不同身份或地位分發(fā)禮物。在兩個敵對的部落之間，主人會在這種宴會上炫耀性地大肆搗毀或分發(fā)貴重禮物來顯示自己的財富

來源：
Chinook Jargon
奇努克混雜語
from Nootka p`achitl [to make a potlatch gift]
源自 努特卡語 p`achitl [為炫財宴會制作的禮物]