trigger happy
/ˈtrɪɡər ˌhæpi/
adjective
- Too willing to shoot a gun, often without good reason.
- The movie showed a trigger-happy cowboy who shot at everything that moved.
- The police were criticized for being trigger-happy during the protest.
- A trigger-happy soldier can cause many unnecessary casualties.
- Too quick to react or take action, especially in an aggressive or careless way.
- Some investors are trigger-happy and sell their stocks at the first sign of trouble.
- The referee was trigger-happy with yellow cards, punishing players for minor fouls.
- The manager is trigger-happy with firing employees over small mistakes.