1. to fail a test, course, or examination
Usage: informal
2. to give a failing grade to a student
Usage: informal

1. a failure or failing grade
Usage: informal

Examples

• I’m worried I might flunk the math test tomorrow.
• She flunked chemistry and had to retake the class.
• The professor flunked half the students on the final exam.
• If you don’t study, you’ll flunk out of college.
• He got a flunk on his history paper.
• Don’t let one flunk discourage you from trying again.
• The teacher threatened to flunk anyone caught cheating.