不敢乱言
[bù găn luàn yán]
The name directly translates to 'not daring to speak recklessly', suggesting modesty, discretion, prudence, or a person who is quite self-restrained. It may imply a desire to avoid making inappropriate remarks causing unnecessary troubles. This attitude is often considered good manners in traditional cultures emphasizing collectivism and harmony maintenance, avoiding conflicts resulting from personal opinions expression too much.