put on one's thinking cap

Think or reflect seriously, as in A new slogan? I'll have to put on my thinking cap for that. This term originated in the late 1800s and replaced considering cap, which dates from the early 1600s.


Nearby words

  1. put on a pedestal,
  2. put on airs,
  3. put on an act,
  4. put on hold,
  5. put on ice,
  6. put on the dog,
  7. put on the feed bag,
  8. put on the map,
  9. put on the spot,
  10. put on to

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.