a red rag to a bull

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Definition of a red rag to a bull

British, informal
used of something that makes a person very angry Just mentioning his poor marks to him was like a red rag to a bull.

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Cite this Entry

“A red rag to a bull.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/a%20red%20rag%20to%20a%20bull. Accessed 6 Dec. 2021.

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