Nice article.According to this article:
"The correct spelling is "Teahupo'o," and it should be pronounced correctly as "tear-hoo-poh-oh." If you can't say it, avoid the common alternatives "cho-poo" or "chopes" - the Polynesians don't have the "ch" sound."
https://www.surfertoday.com/surfing/what-does-teahupoo-mean
I'm just telling you how the people who lived there said it.
Second time I went I was the only whitey, so I only spoke garbled French and Tahitian to my hosts, friends, people in the village.
I only heard the local people say it the way Bourez did in the vid above.