Wiktionary
bad eye
n. 1 A stare that is supposed to be harmful; the evil eye 2 A threatening glance 3 A disapproving regard
Usage examples of "bad eye".
He had a much finer glass, presented to him along with his fancy-but-useless admiral's sword, in admonition that he would, henceforth, be watching things rather than actually doing things, but he had never once so much as put the gilded piece of frippery to his bad eye.