Flunk

Pronunciation

• IPA: /flʌŋk/
• Rhymes: -ʌŋk

Origin

Alteration of funk, or perhaps a flinchfunk#Etymology_2.

Full definition of flunk

Verb

1. (US, ambitransitive) Of a student, to fail a class; to not pass.He flunked math, again.
2. (US, transitive) Of a teacher, to deny a student a passing grade.Unsatisfied with Fred's progress, the teacher flunked him.
3. (US, dated, informal) To shirk (a task or duty).
4. To back out through fear.