Costermonger a secret language, a code which only other costermongers understood. In her book, "Shadows of the Workhouse", Jennifer Worth observed that "Costers... spoke to each other almost entirely in back slang; incomprensible to an outsider." Many costermongers also used "rhyming slang"; where any word can be substituted with another word that rhymes with it. Examples of rhyming slang include: "tin lids" or "dustpan lids" for "kids"; "jimmy grant" for "emigrant"; "apple and pears" for "stairs"; "rubbidy dub" for "pub" and "trouble and strife" for "wife". The selection of rhyming words often suggested a symbolic association. For example, a "sorrowful tale"
Rhyming slang track was released on the 2012 album JJ Doom album "Keys to the Kuffs". In modern literature, Cockney rhyming slang is used frequently in the novels and short stories of Kim Newman, for instance in the short story collections "The Man from the Diogenes Club" (2006) and "Secret Files of the Diogenes Club" (2007), where it is explained at the end of each book. In the novel "Moving Pictures" by Terry Pratchett, this slang is also frequently used. It is also parodied in Pratchett's "Going Postal", which features a geriatric Junior Postman by the name of Tolliver Groat, a speaker