The majority of rappers often use a well-proven formula that connects with the public at large. They would typically use pop elements and strategies that their audience is already used to of that. In contrast, some like to try out weird but unique styles.
A rapper who is called “unorthodox” means his or her artistic style is distinctive, unique, or even bizarre. Several independent rappers are unorthodox and often produce unique works.
For instance, look at these for a better understanding of the slang Unorthodox In Rap.
“I can tell you his style was called UNORTHODOX before he made it famous.”
“Many Spotify rappers do unusual and unorthodox things with the songs they produce.”