Not a spring chicken

Origin

Imagine the bustling markets of 19th-century England, where poultry was often sold by its age and tenderness. The most prized birds were "spring chickens"—hatched in the spring, these young hens and roosters were renowned for their delicate flavor and succulent meat, symbolizing youth and freshness. When someone began to describe a person as "not a spring chicken," it was a clear, humorous, and sometimes poignant comparison. The idiom transferred the qualities of an older, tougher fowl—less agile, past its prime, and certainly not "fresh"—directly to a human, creating a vivid shorthand for someone who was no longer young.