think on one's feet


React quickly, be mentally agile, as in Reporters bombarded him with difficult questions, but Bill was very good at thinking on his feet. This expression uses on one's feet in the sense of “wide awake, alertly.” [First half of 1900s]

QUIZZES

LEARN THE SPANISH WORDS FOR THESE COMMON ANIMALS!

Are you learning Spanish? Or do you just have an interest in foreign languages? Either way, this quiz on Spanish words for animals is for you.
Question 1 of 13
How do you say “cat” 🐈 in Spanish?
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.