But it's not a bad idea at all. In fact, in my turkey tests, I've found the turkeys cooked from a frozen state actually get done more evenly, and are therefore less likely to have that dry breast meat so common with turkey.
The only thing you can't do with a frozen turkey is rub butter under the skin. But you can still stuff the cavity with herbs or sliced oranges or whatever you like.
Try it, and let me know what you think. And be sure to check out my make ahead Thanksgiving recipes, too.
Turkey image by Stephanie Gallagher 2012, licensed to About.com Inc.