Born Brian Onfroy, Jr., New Jersey rapper RetcH, aka Retchy P, developed his dark, relentless, and often apocalyptic style over a series of self-released mixtapes throughout the 2010s. Earlier efforts like 4 LaRaza and Delinquents & Degenerates (both released in 2012) were rawer productions but featured cameos from what would become long-term collaborators like Da$H and KOOL. A 2013 appearance on Action Bronson's track "Flip Ya" followed, as did more mixtapes, but it was the bleak, trap-flavored 2015 mixtape Lean & Neck that caught the attention of producers and performers hig...