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

'So you really want to take on this project, despite what your boss said?' 'Yes, absolutely. He said he thought I couldn't do it, and that's like a red rag to a bull.'

to be like a red rag to a bull

Do you know what it means?

• to be an insult
• to be untrue
• to be a provocation