be like a red rag to a bull

US /bi laɪk ə rɛd ræɡ tu ə bʊl/
UK /bi laɪk ə rɛd ræɡ tu ə bʊl/
"be like a red rag to a bull" picture
1.

像給牛看紅布, 惹人生氣的事物

something that is very likely to make someone angry or upset

:
Talking about politics with him is like a red rag to a bull.
和他談論政治就像是給牛看紅布
Criticizing her work is like a red rag to a bull; she gets furious instantly.
批評她的工作就像是給牛看紅布;她會立刻暴怒。