v.1. To become unusable through long or heavy use: The tent wore out after last summer's trip.
2. To make something unusable through long or heavy use: The tough job wore out my saw. Miles of hiking wore my shoes out.
3. To make someone weary; exhaust someone: The children wore me out. The class wore out the substitute teacher.
4. Chiefly Southern US To punish by spanking: If you don't behave, I'm going to have to wear you out.