What does sumo cat mean in Chaoshan?

Sumo is generally used to curse people in Chaoshan. Sumo cat means bad cat, bad cat.

Chaoshan area, including Chaozhou, Shantou, Jieyang and Shanwei, is located in the eastern coast of Guangdong. It is the political, economic and cultural center of eastern Guangdong, enjoying the reputation of "a country famous for mountains and seas" and "a land of delicious food". Lao She, a contemporary writer, called it "missing Chaoshan for decades" in his poems.