Existing accounts of Australian Aboriginal English do not investigate the significant degree of variation found across the continent. This book presents the first description of English spoken on Croker Island, Northern Territory, Australia, in terms of its history, linguistic features and connections to local Aboriginal languages. It demonstrates that English on Croker Island shows an extremely high degree of intra- and inter-speaker variation and embedding in a longstanding multilingual contact situation, both of which challenge existing models of variation and language contact. These results have significant ramifications for how variation is modelled, for our understanding of how postcolonial Englishes develop, as well as for the dynamics of complex contact situations. The book also puts English on Croker Island into a typological context of World Englishes by establishing a profile according to the parameters of the World Atlas of Varieties of English (WAVE). It is of interest to academics interested in Australian Aboriginal English, language contact, World Englishes and Australian Aboriginal languages.