What does the old fire mean in Anshun dialect of Guizhou province?

People in Guizhou and Sichuan say that "old fire" shows that the problem is more serious. Things are hard, hard, hard to handle. People in Xiangxi Tujia and Miao Autonomous Prefecture in Hunan Province say that "old fire" means very difficult, arduous and troublesome. People in Xilin County and Longlin County, Baise City, Guangxi Province say "old fire", which generally means intensity, derogatory meaning and "going too far".