News Knxwledge & Mach Hommy Get “Gnarly Dude” By mediamaverick - September 12, 2016 FacebookTwitterWhatsApp It’s time to hang loose with Production Kahuna, Knxwledge, and Griselda Records spitter supreme, Mach Hommy. No surfboard is needed. Ride the soundwaves and check out “Gnarly Dude_!”