spring chicken

Noun spring chicken has 2 senses

• spring chicken(n = noun.person) young person, younker, youth - a young person (especially a young man or boy);
is a kind of juvenile, juvenile person
has particulars: blade, hobbledehoy, pup, puppy, pupil, school-age child, schoolchild, slip

• spring chicken(n = noun.animal) - a young chicken having tender meat;
is a kind of chicken, gallus gallus