Shit stick means "a thin stake or stick used instead of toilet paper" for anal hygiene and was a historical item of material culture introduced through Chinese Buddhism and Japanese Buddhism. A well-known example is gānshǐjué/kanshiketsu (lit. 乾屎橛 "dry shit stick") from the Chan/Zen gōng'àn/kōan in which a monk asked "What is buddha?" and Master Yunmen/Unmon answered "A dry shit stick".