This is all the rage apparently. Sometime known as Bubbleology! Bubble tea, is a Taiwanese tea-based drink invented in tea shops in Taichung, Taiwan, during the 1980s. The large, chewy tapioca balls commonly added to the drink are also called "pearls" . Most bubble tea recipes contain a tea base mixed with fruit or milk. Ice-blended versions are usually mixed with fruit or syrup, resulting in a slushy consistency.
This is an example of one drinking this here