Douglas Harper's Etymology Dictionary
1921; see jazz (n.); popularized 1922 in writings of F. Scott Fitzgerald; usually regarded as the years between the end of World War I (1918) and the Stock Market crash of 1929.\n\nWe are living in a jazz age of super-accentuated rhythm in all things; in a rhythm that (to "jazz" a word) is super-normal, a rhythm which is the back-flare from the rhythm of a super war.
["Jacobs' Band Monthly," Jan. 1921]
Wikipedia
The Jazz Age was a period in the 1920s, ending with the Great Depression, in which jazz music and dance styles became popular, mainly in the United States, but also in Britain, France and elsewhere. Jazz originated in New Orleans as a fusion of African and European music and played a significant part in wider cultural changes in this period, and its influence on pop culture continued long afterwards. The Jazz Age is often referred to in conjunction with the Roaring Twenties.
Usage examples of "jazz age".
He had light-brown hair parted down the middle in Jazz Age style and combed back at the temples.
His light brown hair was parted down the middle, as was the style during the Jazz Age, and combed back on the temples.
He was the quintessence of the Jazz Age, a Scott Fitzgerald character.
This quintessentially Jazz Age novel simultaneously encapsulates and transcends its era.
It chronicles the lives and loves of the Jazz Age's gilded youth--the child-people, flitting from thrill to thrill, conversing in a mannered slang which, sixty years later, reads like the gibberings of creatures from another galaxy.
It was a grand thing at the beginning of the Jazz Age to be alive and young and a high-priced whore.
The splendour of motherhood was losing some of its gloss, and something called the Jazz Age was upon us.