Simple Definition of flunk
: to get a failing grade in (something, such as an examination or course)
: to give a failing grade to (someone)
Full Definition of flunk
: to fail especially in an examination or course
1 : to give a failing grade to
2 : to get a failing grade or result in
Examples of flunk
If I flunk this class, I have to take it over again.
If I flunk, I have to take this class over again.
The teacher had to flunk two students.
Origin of flunk
perhaps blend of flinch and funk
First Known Use: 1823
Definition of flunk
: an act or instance of flunking
First Known Use of flunk
FLUNK Defined for Kids
Seen and Heard
What made you want to look up flunk? Please tell us where you read or heard it (including the quote, if possible).