off the top of one's head
The phrase "off the top of one's head" is commonly used to describe spontaneous or impromptu actions or responses.
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Definition
B2General
(informal)Done or said spontaneously, without prior thought or preparation.
Example
- Off the top of my head, I can't remember his name.
- She answered the question off the top of her head.
B2General
(informal)Based on immediate knowledge or perception, without needing to look up information.
Example
- I don't know the exact number off the top of my head, but it's around 50.
- He gave a rough estimate off the top of his head.
Similar
Terms that have similar or relatively close meanings to "off the top of one's head":
off one's headon one's headin one's headstraight from the shoulderover one's headfrom the top