拔根汗毛比腰粗

lit. a hair plucked from (person A) would be thicker than (person B)'s waist (idiom)

fig. A is far richer (or more powerful) than B; (used in a pattern such as A拔根汗毛比B的腰粗[A ba2 gen1 han4 mao2 bi3 B de5 yao1 cu1])