Definitions for luauˈlu aʊ
Random House Webster's College Dictionary
an outdoor feast of Hawaiian food, usu. with entertainment.
Origin of luau:
1835–45; < Hawaiian lū‘au
An elaborate Hawaiian feast featuring traditional foods and entertainment named for the kalo (taro) tops traditionally served at such events.
Origin: lūʻau. Attested 1856 in the Pacific Commercial Advertiser.