Kahuna
Kahuna is a Hawaiʻian word that refers to an expert in any field. Historically, it has been used to refer to doctors, surgeons and dentists, as well as priests, ministers, and sorcerers.
Wikipedia
I was quoting Frankie Avalon in the 1987 movie ‘Back to the Beach’ where middle aged characters fro the Beach Party movie series humorously reprise their roles from 20 years before.