What was the name of ancient popcorn?

In ancient times, popcorn was used for divination. They use the explosion of popcorn to predict the time. In Fan Chengda's "The Custom of Wu Jun", it is mentioned that "everyone blows himself up to take a year off." Some people use it to predict good luck or bad luck, while others use it to predict lifelong events. Fan Chengda, a poet in the Southern Song Dynasty, recorded: "Stir-fried glutinous rice with Ibrahimovic, commonly known as Boluo, and northerners call it glutinous rice flower". In the Yuan Dynasty, there was also a custom of "occupying beige" in the areas where rice was planted at that time: "On the rainy festival, cooking iron pots (iron pots are big pots for cooking food in ancient times) and exploding with glutinous rice, which is called" flowering "and occupies beige.