set (one) wise

set (one) wise

slang To tell one something that one does not know; to inform someone about something of which they are ignorant. We need to set those freshmen wise—they can't keep coming into the senior hallway! Everyone thought that Jen had dumped me, but I was quick to set them wise!
See also: set, wise
Farlex Dictionary of Idioms.
See also:
  • (one) could use (something)
  • (one) never would have guessed
  • (one) doesn't give a rip (about something)
  • (one) doesn't give a hoot (about something)
  • (one's) heart is set on (something)
  • (one) won't hear of (something)
  • (one) could stand (something)
  • (I) wouldn't (do something) if I were you
  • all right
  • a straw will show which way the wind blows