Kanak Sprak is a German sociolect created by Turkish male youth in Germany in late 1980s. The sociolect is named almost uniformally this way after the book Kanak Sprak (1995) by German Turkish author Feridun Zaimoğlu. Its name means roughly "Kanake-talk", referring to the word Kanake, which is used originally as a pejorative and a will to reclaim it.
It is also a book by Feridun Zaimoglu.