Rinkeby Swedish (Rinkebysvenska, pronounced [ˈrɪ̂ŋːkɛbyːˌsvɛnska]) is any of a number of varieties of Swedish spoken mainly in urban districts with a high proportion of immigrant residents which emerged as a linguistic phenomenon in the 1980s. Rinkeby in Stockholm is one such suburb, but the term Rinkeby Swedish may sometimes be used for similar varieties in other Swedish cities as well. A similar term is Rosengårdssvenska ("Rosengård Swedish") after the Rosengård district in Malmö.
https://en.wikipedia.org/wiki/Rinkeby_Swedish