Definition of one could have bitten one's tongue off in English:

one could have bitten one's tongue off

phrase

  • Used to convey that one profoundly and immediately regrets having said something.

    ‘as soon as he had spoken, Grant could have bitten his tongue off’
    • ‘As soon as I did, I could have bitten my tongue off, but she just laughed and said, ‘I already had that figured out.’’
    • ‘Even as the question left my lips, I could have bitten my tongue off.’
    • ‘He could have bitten his tongue off the moment the words were spoken.’
    • ‘There was one of those horrible silences when I could have bitten my tongue off.’
    • ‘He cried, and the next instant could have bitten his tongue off for the childish vanity of the speech.’
    • ‘As soon as he had uttered the question, he could have bitten his tongue off.’
    • ‘After the word was out I could have bitten my tongue off.’