Salty and wet guy fortune telling

Dirty and wretched people are called salty and wet people and hemp-throwing people. How to understand this sentence in Cantonese?

Dirty and obscene people are called salty and wet guys (Cantonese, from English hamshop, which means obscenity and lewdness), and Ma Shuai guys (Ma Yi guys, recorded after listening to Song Shaobo). Volume 10: The monkeys in this world are horses, and they look like people. The Book of Qi Yaomin, written by the Northern Wei Dynasty, often takes the monkey in the cage as the topic, making the horse fearless, seeking good fortune and avoiding evil, and eliminating all diseases. In the Northern Song Dynasty, Zhao Yanwei's "Clouds Full of Morning" was a northern proverb, and Sun Hu was a horse. Li Shizhen's Compendium of Materia Medica in the Ming Dynasty kept horses among animals in the stables, which could cure equine diseases. Hu is commonly known as horse. Ma Lilao, a native of Dai Xiao, also known as Dai Li, can't take off his mourning clothes and take a bath in Dai Xiao for more than ten days.