What is big in japan ne demek?

Big in Japan is a phrase that is used to refer to a person or a thing that is famous or successful in Japan, but not necessarily in other places. It can also refer to how someone's perceived popularity in Japan can boost their fame and reputation elsewhere. The phrase gained popularity in the 1980s with the success of Western musicians and bands who were popular in Japan but not necessarily in their home countries. It has since become a phrase used more widely across various industries and contexts.