No longer young • Often said of a woman: She looks great, but she's no spring chicken(1910+)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with no spring chicken
No longer a young person, as in Sally's no spring chicken, but she plays a fine game of tennis. This unflattering expression, often applied to women, has been used since the early 1700s, although spring was omitted from the earliest citation (1711).