be up in arms
US /bi ʌp ɪn ɑːrmz/
UK /bi ʌp ɪn ɑːrmz/
1.
sangat marah, protes keras
to be very angry and ready to protest strongly about something
:
•
The residents were up in arms about the proposed new factory.
Warga sangat marah tentang pabrik baru yang diusulkan.
•
My parents will be up in arms if I don't come home by midnight.
Orang tuaku akan sangat marah jika aku tidak pulang sebelum tengah malam.