French

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Etymology

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Literally, to put one's hand in fire. Compare German für etwas die Hand ins Feuer legen.

Pronunciation

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  • IPA(key): /mɛ.tʁə sa mɛ̃ o fø/
  • Audio:(file)

Verb

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mettre sa main au feu

  1. to bet one's boots that, to bet one's bottom dollar that
    Synonyms: donner sa main à couper, mettre sa main à couper, mettre sa tête à couper
    Je mettrais ma main au feu qu’ils ont baisé.I would put my hand in the fire that they fucked; I would bet my bottom dollar that they fucked.