掉链子

• Pinyin: diào liàn zǐ
• Hanzi breakdown: 掉 (fall) + 链子 (chain) -> the key mechanism fails when needed.

Meaning

To mess up, fail, or become unreliable at a crucial moment. It implies someone or something should have worked but did not.

掉链子 is often used for teammates, tools, plans, or oneself when a key step fails. It sounds casual and mildly critical, not usually severe.

Examples

1. 关键时刻别掉链子，大家都靠你。 Don't掉链子 at a critical moment, everyone's relying on you.
2. 网络又掉链子，会议差点开不了。 The network掉链子 again, and the meeting almost couldn't start.
3. 他平时很稳，今天突然掉链子。 He's usually very reliable, but today he suddenly掉链子.

Usage Guide

Context: work-casual, school, games

Tone: frustrated, teasing

Do Say

• 明天汇报别掉链子。（Do not mess up tomorrow's presentation.）
• 设备关键时刻掉链子了。（The equipment failed at the key moment.）

Don't Say

• 在正式绩效文件里直接说员工掉链子。（Use more neutral wording in formal records.）

Common Mistakes

• Using it for a small flaw with no consequence; it fits important moments best.

Origin & History

From a bicycle or machine chain falling off, causing motion to stop.

Cultural Context

Era: Longstanding colloquial expression, common online today

Generation: All ages, especially casual speech

Social background: Mainstream

Regional notes: Widely understood across Mainland China.