What does spat the dummy mean in Australia?

"Spat the dummy" means to throw a tantrum or become very angry, in a humorous or colloquial sense. It is often used to describe how children act when they are angry and frustrated. For example, "The toddler spat the dummy when they didn't get the toy they wanted." It can also be used to describe adults when they become very upset or angry. For example, "The politician spat the dummy when the reporter asked him a difficult question."