rake over the coals

The earliest example given is from 1565: "S. Augustine, that knewe best how to fetche an heretike ouer the coles." (OED). (Can this⁽⁺⁾ etymology be sourced?) From the practice of dragging or raking heretics over coals performed by the Catholic Church as a form of torture.

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rake over the coals (third-person singular simple present rakes over the coals, present participle raking over the coals, simple past and past participle raked over the coals)

1. (idiomatic) To call to task or to reprimand severely.

   She raked him over the coals for lying to her.

• haul someone over the coals

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