have a mind as sharp as a steel trap
(redirected from one has had a mind as sharp as a steel trap)have a mind as sharp as a steel trap
To be able to understand or grasp information quickly. David has a mind as sharp as a steel trap, so if you give him the instructions, he'll follow them perfectly.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
have a mind as sharp as a steel trap
Fig. to be very intelligent. She's a smart kid. Has a mind as sharp as a steel trap. They say the professor has a mind as sharp as a steel trap, but then why can't he figure out which bus to take in the morning?
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.