1. up in arms - Adjective
2. up in arms - Phrase
(literally, now uncommon) Armed for battle; prepared for or engaged in warfare.
(figuratively) Angry; incensed; preparing for a fight.
The union members are up in arms over threats of pay cuts.
According Wesonga, the lecturers are also up in arms over the conflicting figures owed by the employer. Source: Internet
Before you get all up in arms about the state of our society, this actually isn’t the worst idea ever. Source: Internet
Disney is back in the headlines for a choice regarding a new film that has its fan-base more than a little up in arms. Source: Internet
“Everyone is up in arms because of the uncertainty around us but life will pick up once again. Source: Internet
Republicans who seemed not to mind at all when Donald Trump said horrible things about Democrats are up in arms. Source: Internet
She seems up in arms, and she asks if he thinks that she’s upset by the idea of whatever is going on with Lily (Christel Khalil). Source: Internet