Idiom for Protesting or Opposing Vigorously

This page is the CodyCross answer for the clue below from Larger than Life, Group 2156, Puzzle 5 (Russia and Canada).

Question is: Idiom for Protesting or Opposing Vigorously

and the answer is: UPINARMS

Word Meaning:

UP IN ARMS — (figuratively) Angry; incensed; preparing for a fight.

Definitions from Wiktionary.

Idiom For Protesting Or Opposing Vigorously - Larger than Life CodyCross Answers | CodyCross Solutions