What is the origin of the word Osu we always hear in the dojo? There are a few different theories on where it came from, but we do know certainly that it was introduced to the “dojo world” through Kyokushin Karate. Today you will hear it also in Brazilian jiu-jitsu schools, kickboxing etc. But, where did it all start? The word … Continue reading The History of Osu! / Oss!