flunk / fləngk/ inf. • v. [tr.] fail to reach the required standard in (an examination, test, or course of study): I flunked biology in the tenth grade | [intr.] I didn't flunk but I didn't do too well. ∎ judge (a student or examination candidate) to have failed to reach the required standard: the teacher flunked thirteen third-graders. ∎ [intr.] (flunk out) (of a student) leave or be dismissed from school or college as a result of failing to reach the required standard: he had flunked out of college.