06/10/16 The Meaning of the Expression ‘Off the Top of One’s Head’

e-lesson

If you know something off the top of your head, it means you know it immediately without needing to look for the information in books, on the internet, etc.

Example:
“I don’t know the exact number off the top of my head, but I’d estimate that we spent about $400,000 on training for employees last year.”