Definition: Beef That Arises Due to a Shared Style
Example(s): Three 6 Mafia vs. Bone Thugs & Harmony, Ja Rule vs. DMX, Clipse vs. Lil Wayne

This is always a strange, strange beef. And often very made-up seeming. "He's biting my style," says an accusatory rapper. "No I am not!" says the the other. And then, it's on. Maybe one of the rappers has never even heard the music, seen the style, of another. Who knows? But, well, in the instances that great music results, who cares?