Here are some examples of sentences using the phrase:
* "He's always willing to help out at the drop of a hat."
* "They were ready to leave at the drop of a hat."
* "She's so impulsive, she'll buy anything at the drop of a hat."
Here are some examples of sentences using the phrase:
* "He's always willing to help out at the drop of a hat."
* "They were ready to leave at the drop of a hat."
* "She's so impulsive, she'll buy anything at the drop of a hat."