think on your feet
think on (one's) feet
To be able to think clearly in times of stress, especially when forming a solution to a pressing problem. Thank goodness you were able to think on your feet and find another way to stop the pipe from leaking. The whole basement would have flooded otherwise.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
think on your feet
If you think on your feet, you make good decisions quickly and react quickly when things change. We always have room for a guy who can think on his feet. Being a parent means thinking on your feet and adapting as you go along.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012
think on your feet
react to events quickly and effectively.Farlex Partner Idioms Dictionary © Farlex 2017
think on your ˈfeet
think very quickly: When he asked me why I wasn’t at work, I had to think on my feet and I invented an excuse about going to see the doctor. ♢ Lawyers in court need to be able to think on their feet.Farlex Partner Idioms Dictionary © Farlex 2017