Welche Bedeutung steckt hinter der hier vorgestellten Vokabel aus dem Bereich Chatting to colleagues?

'Look, you are clearly exhausted by this type of work. It's not the be-all and end-all, you know. Think about getting a different job.' 'You're right. I need a new direction.'

the be-all and end-all

Do you know what it means?

• the worst-case scenario
• something of greater importance than anything else
• the last chance to do something