The phrase "a wrong idea of" is correct and usable in written English.
You can use it when discussing misconceptions or misunderstandings about a particular concept or topic.
Example: "Many people have a wrong idea of what success truly means, often equating it solely with wealth and status."
Alternatives: "a misguided perception of" or "an incorrect understanding of".
If people want to shoot targets, let them shoot with fake bullets because if they are shooting with real guns and real bullets they might get a wrong idea of hurting people.
If you are underage and your parents really don't agree, I would put the dream aside just a few more years, Show them that it really is fun, and that they might have a wrong idea of it.
Oddly enough, while it seems clearer than ever that Donald Trump has never really read the U.S. Constitution, he may have inadvertently picked up a wrong idea or two from the Declaration of Independence.
And faking, whether we're talking about orgasms or enjoying oral, can give a guy the wrong idea of what's working for you in bed.
Here are some tips if you've never stayed in one, or worse, have the wrong idea of what a hostel is like.
I don't wish to be too hard on Mr. Schafer, who employs a cackling laugh in a repertory of unpleasant tics, but he plays Lester with the wrong idea of how to be a pest; he should annoy Lorrimer, not the audience.
However, in some cases, the shortest name contains "suffix" or "prefix --like "I", "II"--that causes the integrated prefix --liketo give the wrong idea of describing only a sprefix --liket of the Integrated pathway.
When confronted by his friends, Kabir confesses to Arjun and Imraan that he is still not ready for a marriage, and that Natasha had gotten the wrong idea (of him proposing her) on seeing the ring that he had bought for his mother as a birthday present, but he could not tell this to Natasha as he did not want to hurt her.
Don't wear goth clothes if you're a sweet, girly girl, otherwise people will get the wrong idea of you.
Next, he gave the country the wrong idea of his priorities by getting into an immediate hassle with the military - his military - over gays.
A cluttered background may distract your audience, not to mention send the wrong idea of your organizational skills.
