The Tsum Tsum craze has spread worldwide, but it’s not difficult to imagine that such cuteness was first born in Japan. The Disney owned Tsum Tsum franchise began as a video game released on the popular LINE application and grew into a plush toy phenomenon. Millions of stuffed Tsum Tsum toys have been sold globally, but many types are exclusive to Japan. Recent releases include Tsums based on characters from new Disney acquisitions Marvel and Star Wars. Sound smart with your friends: Tsum Tsum comes from the Japanese word “tsumu”, which means “to stack”.