v.1. To leave abruptly by walking: My friend got angry and walked off in the middle of our conversation.
2. To reduce or eliminate some pain or stiffness by walking: I pulled my leg muscle a little bit, but I walked it off. The athlete walked off the muscle cramp before the game.
3. To lose some amount of weight by walking: She walked off ten pounds. He walked five pounds off.
4. To shed the weight gained by consuming something: You'll have to walk off all that chocolate cake. If I eat this doughnut, I'll walk it off this afternoon.
5. walk off with To win some prize or award easily or unexpectedly: My student walked off with first prize.
6. walk off with To steal something: Someone walked off with my wallet.