Do Chaoshan people really speak Korean, Thai and Japanese? I don't know.

Of course not. It's just that Chaoshan dialect sounds very similar to Korean, Japanese and Thai. There are a large number of homophonic words in the languages of Japan, South Korea, Thailand, Indonesia and Malaysia. This is related to the fact that the ancestors in Chaoshan area brought their own language and culture to these areas and spread them. So far, Chaozhou dialect is still the main discourse of communication between Chaoshan area and hipsters at home and abroad.