The term 'plug of tobacco' is a type of smokeless tobacco product. It is made up of compressed and sweetened tobacco leaves that are formed into a brick-like shape. The term 'CHAW' is a slang term for this type of tobacco product, and it is derived from the French word 'chouer, ' which means to chew. Plug of tobacco is often chewed, but it can also be sliced and placed between the cheek and gum.