flunk
Pronunciation:
/flʌŋk/verb
Definitions
Of a student, to fail a class; to not pass.
Example: He flunked math, again.
Of a teacher, to deny a student a passing grade.
Example: Unsatisfied with Fred's progress, the teacher flunked him.
To shirk (a task or duty).
To back out through fear. (Commonly in the phrase 'flunk it', the 'it' referring to a specific task avoided; sometimes without specific reference describing a person's attitude to life in general.)