1. To look sickly, unwell, or out of sorts, either physically or mentally. You're looking a little off, Jim. Are you feeling all right? That dog on the corner looks a bit off. I think we should walk another way home.

2. To appear somewhat strange, incorrect, inaccurate, or substandard. A: "The rest of your portrait is coming along really well, but the hands look a bit off." B: "I know, hands are just so hard to draw!" The gameplay is great, but the characters' faces look a little off.

3. Of food, to appear spoiled or rotten. These chicken breasts look a little bit off—I don't think we should risk it.