Jabu-Jabu (jä'boo jä'boo), referred to as Lord Jabu-Jabu by the Zoras, first appeard during the creation of the world by these three golden goddesses about the same time as the Triforce was made by a bored kid in geomerty class with much time on his hands, believe me, I was there. It is a giant whale-sized fish worshiped by the Zora race as their patron deity and guardian, not that he actually does anything, but that's not the point. It's name most likely comes from ジャブ (jabu), the Japanese onomatopoeia for splashing, those guys at Nintendo sure are creative.