The term 'ALL THAT JAZZ DIRECTOR BOB' is referring to the American film director, choreographer, screenwriter, and actor Bob FOSSE (5 letters). FOSSE was a highly acclaimed director and choreographer, winning an Academy Award for Best Director for his 1979 musical drama 'All That Jazz'. He also won eight Tony Awards for choreography, as well as one for direction. FOSSE's work on Broadway and in film has had a lasting influence on popular culture, and he is considered one of the most influential choreographers of all time.