Grape, Vitis sp.

Its, perennial vinca. Sounds like you have the white variegated variety (I've got the yellow, my,self). MOW it, it will keep it in check and really make you feel better. You won't kill it, I promise. Now, if you want to kill it, why not try and see if anyone on the plant exchange forum will give you something you want for it instead. If you trade away much of it, but still want to kill it, ask again and I'll tell you how. ~Chills

Here's another photo. It's not Chilean Glory or Canary Creeper. I'll ask on the Name That Plant forum too. Cuttings are available for trade, no problem. I just would need to trade soon, before any freezes and prior to the holiday rush madness at the post office! ;-)

If you could give a good look at the flowers that might improve results.