Definition of "spring chicken" [spring chicken]

• A young chicken, especially one from two to ten months old, having tender meat. (noun)
• Slang A young person. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• ""She's not the spring chicken you're fantasizing," Sylvie had said just this morning over the last of the coffee."