have 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.
See also: have, mind, sharp, steel, trap
Farlex Dictionary of Idioms.

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?
See also: have, mind, sharp, steel, trap
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • have a mind like a steel trap
  • mind like a steel trap, have a
  • (as) sharp as a steel trap
  • on the uptake
  • quick on the uptake
  • a bit obtuse
  • be quick on the uptake
  • within grasp
  • cotton on to (something)
  • cotton on