英语俚语is at each other's

e at each other's throat 吵来吵去,互责的意思.引申彼此互有口角,甚至拳脚相向的意思
类似的还有jump down sb's throat 对某人发飙
e.g:He jumped down my throat after I said a few words.我才说几句话,他就颓然对我发飙