Definition of blow (or toot) one's own horn in English:

blow (or toot) one's own horn

phrase

North American
informal
  • Talk boastfully about oneself or one's achievements.

    • ‘To toot my own horn, I've been referred to as ‘hot’ upon more than one occasion.’
    • ‘Don't envy, don't boast, don't toot your own horn - ever.’
    • ‘We are not trying to toot our own horn by praising the achievements of Taiwan's agricultural technical teams.’
    • ‘He's not a person that blows his own horn at all.’
    • ‘Do not be conceited, he who blows his own horn will find people are quick to get out of his way.’
    • ‘Anyhow - I'm not writing to toot my own horn, I am writing to toot yours.’
    • ‘Now, not to toot my own horn, but don't you think I deserve some credit in this scenario?’
    • ‘In other words, you're not just blowing your own horn.’
    • ‘He's certainly not shy about tooting his own horn in regard to some of the decisions that were made concerning the script and location shooting.’
    • ‘I hate to toot my own horn but this is a pretty huge paradigm shift for me.’
    boast, brag, sing one's own praises, show off, swank, congratulate oneself
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