anger against a common enemy (idiom); joined in opposition to the same adversary
Definitions (粵典–words.hk)
動詞
共同胸懷憤恨,齊心協力抵抗共同敵人 to share the same hatred for and together fight against a common enemy
全民同仇敵愾,抵抗外侮。
全民同仇敌忾,抵抗外侮。
cyun4 man4 tung4 sau4 dik6 koi3, dai2 kong3 ngoi6 mou5. All citizens shared the same hatred and fought against foreign aggression.