It's from Guangdong, and there is such an allusion.

It is said that Lu You (hereinafter referred to as Lu) has been fooling around all day since she married Tang Wan (hereinafter referred to as Xiao Wan). One day, Lu's mother couldn't stand it, forcing Lu and Xiaowan to divorce. A few years later, Xiaowan has taken a pipa. Oh, no, she remarried. One day, they happened to meet the garden where she was writing poetry. There is a table of dining tables in the garden for Ah Lu (whether he cooked the soup himself is impossible to verify). After eating, Alou felt a lot, so he wrote the long-standing "crazy head of vegetables" on the wall. ...

Salted pig's hand, sweet beer, beef tenderloin with bitter fish soup and hot and sour soup (the textual research of later generations should be-beef tenderloin with bitter fish soup), smelly, smelly, smelly Dongpo meat, shrimp ball oil, if you can't break it, slip away as early as possible ... You won't turn back and leave after writing, leaving Xiaowan who can only cry all the time. When future generations read this, they will not wet their skirts or shed tears. Later, Xiaowan took the lead.

Later, it gradually evolved into a "salty pig hand", as if it were a pervert who cursed the family for pumping water or eating tofu.