The coconut pirates that attack Moana and Maui are called the Kakamora.
The Kakamora are small, aggressive seafaring figures who wear coconut armor and travel in fleets of improvised boats. In the story, they attack Moana and Maui because they want the powerful heart of Te Fiti, which Moana is carrying on her mission to restore balance to the world.
Their name and appearance are among the most memorable elements inherited from the 2016 animated film. They are often mistaken for the Menehune, but the two groups are not interchangeable. The Menehune are legendary small people associated with Hawaiian folklore, while the Kakamora are fictional coconut-armored pirates created for the Moana story.
Te Kā is also unrelated: she is the volcanic antagonist connected to the stolen heart of Te Fiti. Lalotai, meanwhile, is the realm inhabited by monsters, including the giant crab Tamatoa. The Kakamora are specifically the pirate attackers encountered at sea.