The "Brazilian Kick" is a popular kick in Karate. It is a version of Mawashi Geri (or Round Kick) where the kicker turns the knee down so that the foot goes over the defender's guard. Famous Brazilian karateka Francisco Filho and Glaube Feitosa are known for this kick and used it with great success in Kyokushin and K-1. Before those two great fighters, there was Ademir da Costa. He was Brazil's first superstar karate fighter. Check him out.