get it wrong

get (something) wrong

To do, understand, or answer something inaccurately and/or incorrectly. I sure didn't ace the exam, but I hope I didn't get too many wrong. Take your time—you'll just end up making more work for yourself if you get it wrong the first time. That electrician got the wiring wrong, and now nothing in the house will turn on!
See also: get, wrong
Farlex Dictionary of Idioms.

get it wrong

to misunderstand someone or something. Oh, Otto, you've got it wrong again! Why do you have to get it wrong every time?
See also: get, wrong
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • get (something) wrong
  • come down hard on (someone or something)
  • come down hard on someone
  • didn't exchange more than three words with
  • didn't exchange more than three words with (one)
  • run on (something)
  • be hard on (one)
  • be hard on somebody
  • I didn't (quite) catch that (last) remark
  • I didn't (quite) catch that