Definition of at the drop of a hat in English:

at the drop of a hat

phrase

informal
  • Without hesitation or good reason.

    ‘he used to be very bashful, blushing at the drop of a hat’
    • ‘She's still experiencing sleepless nights and cries at the drop of a hat.’
    • ‘Most small business employers aren't callous mongrels who sack workers unfairly or at the drop of a hat to gain a sense of power.’
    • ‘We do not take parents to court at the drop of a hat.’
    • ‘It's funny how kids can change allegiances at the drop of a hat, whereas adults bear grudges over years and decades.’
    • ‘I can't just take time off at the drop of a hat.’
    • ‘Lisa's inclined to change her mind at the drop of a hat.’
    • ‘Last night, shocked parishioners spoke glowingly of her as a friend and neighbour and as a lady who would do one a good turn at the drop of a hat.’
    • ‘He's dangerously self-absorbed, and bursts into tears at the drop of a hat.’
    • ‘Today, car loans are available at the drop of a hat, and second hand cars come at throwaway prices.’
    • ‘He was known for his generosity and friendliness - but he could turn nasty at the drop of a hat.’