張り切る

1. Origins, structure, and basic meaning

• Structure: 張り切る (はりきる) joins taut energy 張り with completion 切る to mean being highly enthusiastic.
• Basic usage: It describes eagerness for a new role and can be excessive enough to cause exhaustion.

2. Common pitfalls and similar expressions

• Enthusiasm can become overexertion
  • Plain 張り切る is often positive, while 張り切りすぎる warns that the energy has passed a sustainable level.