[be] up in arms (about|over|after) {sth}
1
to be extremely angry or upset about something
The phrase "up in arms about something" has its origins in medieval times and dates back to the 14th century. It was initially used in a literal sense to describe the act of being armed with weapons in preparation for battle or conflict. Over time, the phrase evolved to also carry a figurative meaning, referring to a state of anger, outrage, or protest. It is commonly employed in discussions related to politics, social matters, or public controversies that evoke passionate emotions.
- The community was up in arms about the proposed tax increase.
- She was up in arms over the unfair treatment she received.
- Parents are up in arms about the new school regulations.
- Fans were up in arms over the cancellation of the popular TV show.
- The employees were up in arms after the sudden changes in the company policy.