Brazilian Jiu Jitsu, or BJJ is a martial art of Japanese origin in which levers, twists, and pressures are used to knock... moreBrazilian Jiu Jitsu, or BJJ is a martial art of Japanese origin in which levers, twists, and pressures are used to knock down the opponent and dominate him. The brazilian jiu jitsu belts system is highly regarded and for a good reason. In contrast to many other martial arts, where rank advancements can be attained quickly and frequently with minimal practical requirements, the Brazilian Jiu Jitsu system could be more flexible and easier to follow.