According to the first Hawaiian
dictionary, "kahuna" is a contraction of "kahu" (to cook
) and "ana" (adds "ing" to a word). Another translation for kahuma is "a caretaker".
Kahuna is a priest
or an administrator
of some kind. Try thinking 'webkahuna' instead of webmaster.
Try going to http://www.huna.org/html/kahuna.html for an article on exactly what a kahuna is.