腰抜け

1. Origins, structure, and basic meaning

• Structure: 腰抜け, read こしぬけ, here means a disparaging term for someone seen as lacking courage.
• Basic usage: It is used when calling someone a coward or blaming oneself in those terms.
  • 相手を腰抜けと呼んで侮辱してはいけない。

2. Common pitfalls and similar expressions

• A disparaging tone
  • 腰抜け belittles someone for being timid and is more disparaging than a descriptive expression such as 臆病な人.