[BB_TX]

If you are talking about the outer insulation of the cord pulling out of the molded plug, you can actually work it back in. You need warm weather and sunshine. Let the sun shine on the cord and thoroughly warm it. Then clamp the cord 10’-15’ from the plug to something rigid. Then starting near the clamp, squeeze the cord with your hands and slide your hands toward the plug. Go back to the clamp and do it again. The cord outer insulation will stretch a little each time toward the plug until it starts to press against it. Add some adhesive and work the end back into into the hole in the plug. Go back and squeeze and push a few more time to get the insulation in as far as possible. Might save you a bundle of cash.

You might could do it using a heat gun or hair dryer but the cord needs to stay warm during the process. You can do the same with smaller extension cords.