be no laughing matter
成語所屬單字laughing
be no laughing matter — 慣用語
1. Used to say that something is serious and should not be joked about.
1.慣用語
釋義
不是開玩笑的事
Used to say that something is serious and should not be joked about.
例句
The judge reminded everyone that the case was no laughing matter.
For Sara, losing her job was no laughing matter.