rt. I rhythmic syncopated esp. improvised music of Black US origin. 2 slang pretentious talk or behaviour (all that jazz). v. play or dance to jazz. jazz up brighten or enliven. -1 jazzer n. [origin uncertain]
rt. I rhythmic syncopated esp. improvised music of Black US origin. 2 slang pretentious talk or behaviour (all that jazz). v. play or dance to jazz. jazz up brighten or enliven. -1 jazzer n. [origin uncertain]