Definition
Used to describe a situation that suddenly becomes chaotic and violent, especially when people start arguing or fighting.
大乱起来（尤指突然发生暴力冲突或争吵）
When the coach announced that practice was cancelled, all hell broke loose.
当教练宣布练习取消时，场面一片混乱。
During the meeting, all hell broke loose when the new proposal was presented.
在会议期间，当新提案被提出时，场面变得一片混乱。
Once the power went out, all hell broke loose as the kids started running around.
一旦停电，孩子们开始到处乱跑，场面一片混乱。