粵方言與客方言，都有忌諱直稱豬舌，而將豬舌改稱「豬利」的風習，一般說法是因為舌字在粵方言或客方言音近於蝕字或折字，怕會「蝕本」或「折本」，所以才將豬舌改稱為豬利。但究竟舌字是音近於折字還是蝕字，說法莫衷一是。本文以聲韻學為方法，並以苗栗四縣腔客語為討論中心，發現舌字音近於折字的中古《廣韻》又讀音，故舌字所避諱的本字該是折字，而蝕字的苗栗縣客語音不太可能音同於舌字，故避諱蝕字只是一般人的誤解。

In the Yuè (Guangdong) and Hakka dialects, there are also euphemistically to rename the "pig tongue (Zhu-she豬舌)" as "pig benefit(Zhu-lì豬利)". The general statement is because "tongue(She舌)" is symphonious on the word of "loss (Zhe折)" or "eclipse (Xï蝕)" in the dialect or Hakka and Yuè dialects, But which one is the real symphonic taboo word both of them after all? The article was base on the Phonology gateway and focus on the Hakka dialect in Miaólì Sìxian (Siyen) (苗栗四縣), and found the word of She is symphonic taboo to another Medieval pronunciation of the word Zhe which recorded in the "Guang-yùn (廣韻)", therefore the notion of "symphonic taboo to Xï" was a misunderstanding because Xï in all probability not symphonious to She.