Be at each other's throats phrase
Said of two or more people or groups are angrily and aggressively fighting or arguing with each other
I have a very disturbed family background. My parents have been at each other's throats for years.
My mom and dad were at each other's throats for different opinions on which career I should pursue.
To argue with somebody
When an argument or a fight occurs, both parties involved are responsible for it.
The verb "be" must be conjugated according to its tense.
This phrase dates from the sixteenth century.