As described by its dedicated Reddit page, Phonk is "an underground style of hip-hop/trap music directly inspired by 90s Memphis rap." The hip-hop subgenre has traditionally called SoundCloud its home, and has been driven forward by pioneers like DJ Yung Vamp, Soudiere, and DJ Smokey.
Phonk is the fastest growing playlist on Spotify, garnering over 2.3 million followers in the past year. Over the course of last month alone, it's grown by 30%. However, the subgenre's construction took place years ago, and is still evolving today.