Watubi is a semi-legendary medicine man well-known through the South Pacific. The Skipper possibly becomes aware of him during his Navy years in the area. When he becomes convinced that he's been cursed by Kona, the Skipper becomes convinced only Watubi can cure him, leading to Gilligan to impersonate the medicine man for the Skipper's sake.
- Apparently, "Watubi" is also the name of a local tribe. The Professor tells anthropology teacher Miss Ainsworth at the college he works at in Rescue from Gilligan's Island that there is a tribe of Watubi natives who have a marriage ceremony involving drinking from a straw.