The famous Hawaiian words "Maui No Ka Oi" simply mean "Maui Is The Best".
My name is Volker Weiss, aka VWonMaui, and I believe this is 100% correct. But don't take my word for it! Here is an article published in the Huffington Post, "Maui voted Best Island in the World". The Conde Nast Traveler's readership has been voting for Maui as #1 island in the world for 20 consecutive years. Maui captured me from the minute I first arrived. I never forget walking down the stairs from the airplane in Kahului during sunset hour on a mellow October evening. This is it. Paradise found!