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"
Slang terms for money Pineapple" because of its yellow colour. Pre-decimal currency in Australia had a variety of slang terms for its various denominations. The sixpence was often referred to as a "zack", which was an Australian / New Zealand term referring to a coin of small denomination. The term was also used to refer to short prison term such as 6 months. An Australian shilling, like its British counterpart, was commonly referred to as a "bob", and the florin was consequently known as "two bob". Similarly, one Australian pound was colloquially described as a "quid", "fiddly", or "saucepan", the latter as rhyming slang