Welche Bedeutung steckt hinter der hier vorgestellten Vokabel aus dem Bereich In the news?

'What are you reading?' 'It's a newspaper report about yesterday's strike. It seems the demonstration was very peaceful, then suddenly all hell broke loose. No one knows exactly why.'

all hell broke loose

Do you know what it means?

• the police barriers collapsed
• there was complete chaos
• there was great amusement