You’re no Spring Chicken
Meaning
You’re not young anymore; you’re past your prime.
Example
George Walsh is no spring chicken, but he certainly knows the cruise industry.
Origin
Until recent generations, there were no incubators and few warm hen houses, which meant that chicks couldn’t be raised during winter. New England growers found that those born in the spring brought premium prices in the summer market places. When Yankee traders tried to pass off old birds as part of the spring crop, smart buyers would protest that the bird was no spring chicken.
