How do today's teenagers talk? What are the distinguishing features of their style of language, and what do they tell us about the English language more generally? Drawing on a huge corpus of examples collected over a fifteen-year period, Sali A. Tagliamonte undertakes a detailed study of adolescents' language and argues that it acts as a 'bellwether' for the future of the English language. Teenagers are often accused of 'lowering the standards' of the English language by the way they talk and text. From spoken words - 'like', 'so', 'just', and 'stuff' - to abbreviated expressions used online, this fascinating book puts young people's language under the microscope, examining and demystifying the origins of new words, and tracking how they vary according to gender, geographical location, and social circumstances. Highly topical and full of new insights, the book is essential reading for anyone interested in how teenagers talk.