 Extravagant banquets were referred to as (, ), literally meaning ""po" mountains, meat forests".Beef "po" was also often used to make (, ), a kind of "dasik" (tea food).The 18th-century book "Sasojeol" (Elementary Matters of Etiquette for Scholar Families), which was written by the Joseon scholar Yi Deok-mu (1741–1793), states; "Do not frequently smell fish or seafood "po"".