Green’s Dictionary of Slang

(orig. US) a young woman.

1922		S. Lewis Babbitt (1974) 140: The painless chicklets of the Wrollicking Wrens are the cuddlingest bunch that ever hit town.
1959		C. MacInnes Absolute Beginners 52: She keeps a string of idiotic chicklets on the game.
1968		Time 27 Dec. 47: There is some show-stopping (if irrelevant) footwork by a trio of pretty chicklets billed as Extraordinary Spooks.
1970		New Yorker 21 Feb. 95: A chicklette with flowing hair turned to her bearded companion and pronounced with wide-eyed awe, ‘He’s flying in from Death Valley’.
1986		J. Licht N.Y. Times 19 Oct. n.p.: All the chicklets in my business, with their blow-dried hairdos, came along [R].