potlache
/ˈpɑːtˌlætʃ, ˈpɑːtˈlætʃ/Definitions
1. noun
a ceremony or gift-giving practice among the Native Americans of the Pacific Northwest, in which hosts give gifts to their guests, who are expected to reciprocate in kind.
“The tribe’s elaborate potlatch ceremony has been a cultural tradition for centuries.”
2. noun
a lavish or extravagant display of generosity or luxury.
“The billionaire’s lavish wedding was a true potlatch, with guests showered with expensive gifts.”
3. verb
to give or spend money or goods lavishly or extravagantly.
“The company potlatched its profits on a series of expensive marketing campaigns.”