Entry 1 sense Webster, 1913 Younker /yŭng'-kẽr/ · Youn·ker · IPA /jˈʌŋkər/ 01 n. A young person; a stripling; a yonker. 1. A young person; a stripling; a yonker.[Obs. or Colloq.] “That same younker soon was overthrown.” — Spenser.