Without Rhyme or Reason

Rhyming slang is a form of slang word construction in the English language. It is especially prevalent among Cockneys in England, and was first used in the early 19th century in the East End of London; hence its alternative name, Cockney rhyming slang. In the United States, especially in the criminal underworld of the West Coast between 1880 and 1920, rhyming slang has sometimes been known as Australian slang. The construction of rhyming slang involves replacing a common word with a phrase of two or more words, the last of which rhymes with the original word; then, in almost all cases, omitting, from the end of the phrase, the secondary rhyming word (which is thereafter implied), making the origin and meaning of the phrase elusive to listeners not in the know.