Stockholmska

Stockholmska is a group of dialects spoken in Stockholm. An exact definition encompassing its peculiarities is hard to find, as a cosmopolitan culture and early adoption infers a great variety of international influences that are then spread to the rest of Sweden, and, as Stockholm is a highly urbanized area, the dialects of Stockholm are more likely to undergo rapid changes than dialects spoken in rural areas. For instance, the thin L sound (as opposed to the thick L) came into Stockholmska from Germanic merchants, and later spread into common usage; the thick L it replaced is today considered dialectal.

Read more about Stockholmska:  Overview, Stockholmska in Popular Culture