Definition of one of those days in US English:

one of those days

phrase

  • A day when several things go wrong.

    • ‘It's been one of those days - rubbish weather and a lousy ride into work.’
    • ‘I am having one of those days today and here you can see the results.’
    • ‘This was one of those days, one which is still hard to come to terms with.’
    • ‘I should just go home to bed, because I can tell it's gonna be one of those days.’
    • ‘Ever have one of those days where you're really glad that it's over and it's Friday?’