What is "kigurumi"? Kigurumi is the name for costumed characters. The name comes from the Japanese verb "kiru" (to wear) and noun "nuigurumi" (stuffed toy) As part of the Japanese Pop culture these costumes are used in many occasions like parties, events, Halloween, shops opening, etc. Like Japanese Anime these costumes are gaining popularity around the globe with fans all over the world now.