be up in arms
US /bi ʌp ɪn ɑːrmz/
UK /bi ʌp ɪn ɑːrmz/
1.
estar en pie de guerra, estar furioso, protestar enérgicamente
to be very angry and ready to protest strongly about something
:
•
The residents were up in arms about the proposed new factory.
Los residentes estaban en pie de guerra por la propuesta de la nueva fábrica.
•
My parents will be up in arms if I don't come home by midnight.
Mis padres estarán furiosos si no llego a casa antes de medianoche.