up in arms
成語所屬單字arm
up in arms — 慣用語
1. very angry and complaining loudly about something, often as a group.
1.慣用語
釋義
群情激憤；強烈反對
very angry and complaining loudly about something, often as a group.
例句
Local parents were up in arms about the sudden closure of the village school.
Fans were up in arms when the band cancelled the Tokyo concert with no refund.