Wiktionary
vb. (context idiomatic English) To make a mistake.
Usage examples of "put a foot wrong".
When he does venture into theory ('from the Jacobeans onward [there are] villains who are truer and vastly more enjoyable than saintly heroes who never put a foot wrong'), you get a sense of something callow and furtive, as if Mr Theroux still does his reading in the small hours - under the blankets with a flashlight.
From time to time, if Kiukiu put a foot wrong or slithered on loose scree, the strings gave a metallic shudder, as if offended at this rough treatment.
He had no idea how to address her, and he did not want to put a foot wrong.
A highly competent field officer, an independent thinker, known to take his own initiative on operations, and believed never to have put a foot wrong .
They were almost to the door, and Mat had not put a foot wrong yet.
Aiel would kill you as soon as look at you, and you could put a foot wrong with them by breathing.