younker noun4 •junker •(no longer used) A young man; a lad, youngster. •(no longer used) A young gentleman or knight.So foorth they went, and both together giusted; But that same younker soone was overthrowne — 1596 •(no longer used) A novice; a simpleton; a dupe.Trimmed like a younker prancing to his love! — 1591 formsyounkers