Mr Miyagi is the patient karate teacher at the heart of The Karate Kid, first released in 1984, whose calm lessons and dry humour made him one of cinema's most quoted mentors. Short spoken moments built around his name have since travelled far beyond the films, circulating as reaction clips on soundboards and in short-form video edits. They work because the name alone carries decades of recognition, so creators use it to signal guidance, respect or a sudden realisation without needing to explain the reference.