Please state in which country your phrase tends to be used, what the phrase is, and what it should be.
Example:
In America, recently came across “back-petal”, instead of back-pedal. Also, still hearing “for all intensive purposes” instead of “for all intents and purposes”.
Definition # 4 is the applicable one here.
When multiple people politely point out that you’re wrong, perhaps digging in your heels and telling them to be better isn’t the right call.