The local dialect spoken in the Kansai region. To locals, the dialect sounds very friendly, to non-Kansai people, the language sounds either very strong and direct, and therefore frightening, or it sounds very funny.
Many people from the Kansai area who are seen on TV are comedians which reinforces the idea that people from Kansai are all comedians and that people who speak Kansai-ben are also comedians.