Short answers, pulled from the story.
Punk rap is a fusion genre that merges punk rock and hip-hop, also drawing from trap music, heavy metal, and lo-fi. Unlike conventional hip-hop, punk rap songs are typically short, repetitive, wrapped in distortion, and share the "unorthodox" structural qualities of hardcore punk, rejecting standard verse-chorus song forms.
Odd Future is identified as one of the earliest proponents of the punk rap scene, recognized for merging hip-hop with shock humor. Lil Jon's harsh style of vocalization has also been cited as an influence on the genre's development, alongside Miami artist SpaceGhostPurrp.
Vulture described punk rap's origins as "the product of a convergence between Atlanta trap and the devilish eclecticism of Miami predecessors like SpaceGhostPurrp." This points to a specific geographic and sonic collision between Atlanta and Miami musical traditions.
According to journalist Thomas Hobbs writing for the BBC, the rise of punk rap represented a rebellion against the politics of its period. Artists expressed disdain for Brexit, the presidency of Donald Trump, and global warming.
Punk rap shares what sources describe as the "unorthodox" characteristics of hardcore punk: songs that are short, repetitive, wrapped in distortion, and structurally unconventional. Hardcore was itself a "radical departure" from popular music, played "louder and harder" and rejecting standard verse-chorus rock structure.
Punk rap artists vary in their vocal approach. Some use screaming drawn directly from punk rock, while others adopt punk's attitude and melodic style without harsh vocals. Lil Jon's vocal style has been specifically cited as an influence on the genre's development.