potlatch Definition

a ceremonial feast of the American Indians of the northwest coast marked by the host's lavish distribution of gifts or sometimes destruction of property to demonstrate wealth and generosity with the expectation of eventual reciprocation

a social event or celebration

to give (something, such as a gift) especially with the expectation of a gift in return

to hold or give a potlatch for (a tribe, a group, etc.)

to hold or give a potlatch