Back to a random selection, because it’s fun.
younker (n.) IPA Pronunciation: 
1. young man
2. greenhorn, juvenile
RICHARD
How well resembles it the prime of youth,
Trimm’d like a younker prancing to his love!
– Henry VI, Part 3 (II.i)
The meaning seems to be a little derogatory. The literal meaning is #1, a young man but the implied meaning is often one who is inexperienced, foolish, immature.