Vailala Madness
The Vailala Madness got its name from the behaviour of people who took part in it. This behaviour included glossolalia (or "speaking in tongues"), shaking, and signs of mental or emotional disturbances . In the indigenous language, people who were taking part in the Vailala Madness called it iki haveve, or "belly-don't know," which was another way of saying "dizziness."