The term 'All THAT Jazz' is a phrase used to describe something THAT is exciting, vibrant, and full of life. It is often used to refer to jazz music, which is a genre of music THAT originated in the United States in the early 20th century. The crossword solutions for the term 'All THAT Jazz' are 'THAT' (4 letters) and 'COOL' (4 letters). The two words together suggest THAT jazz music is something THAT is both exciting and COOL.