A Fish Called Wahoo should really be a parody film or band name or SOMETHING! I mean, look at its opening paragraph on Wikipedia:
Wahoo (Acanthocybium solandri) is a scombrid fish found worldwide in tropical and subtropical seas. It is best known to sports fishermen, as its speed and high-quality flesh makes it a prized and valued game fish. In Hawaii, the wahoo is known as ono. The species is sometimes called hoo in the United States.
Ono? Hoo? And it’s a member of the Scombridae family which includes mackerels, tunas, and bonitos. Onos and bonitos. Isn’t the animal kingdom fascinating?