What does brains of tapioca mean?

"Brains of tapioca" is a colloquial term that refers to the small, round, gelatinous pearls made from tapioca starch, often used in desserts and beverages like bubble tea. The phrase evokes the appearance of these pearls, which can resemble small brains due to their shape and texture. They are chewy and absorbent, adding a unique texture to various dishes.