1. What does it mean?
중꺾마 abbreviates 중요한 것은 꺾이지 않는 마음, meaning that what matters is an unbroken spirit. It is a compact encouragement to keep trying despite difficulty, used in sports, games, study, and personal challenges.
Also written or said as jungkkeongma
2. The nuance
It can be sincere or lightly comic. It praises resolve, but does not mean success is guaranteed or that resting and changing direction are failures.
3. Examples
“첫 시도는 실패했지만 중꺾마라고 적고 다시 준비했어.”
The first attempt failed, but I wrote 'keep your spirit unbroken' and prepared again.
“응원 메시지 끝에 중꺾마 한마디를 붙였어.”
I ended my encouragement message with a short 'don't lose heart.'
Sources
References support the meaning and usage. Example sentences are written for NoCapWiki.