wash one's brain out with soap

English

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Etymology

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From the idea of washing one's mouth out.

Verb

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wash one's brain out with soap (third-person singular simple present washes one's brain out with soap, present participle washing one's brain out with soap, simple past and past participle washed one's brain out with soap)

  1. (colloquial, humorous) To remove or erase unwanted images from one's mind.
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