If you like cold weather, sure, call it frost. But if every snowman's smile looks unbearably smug, walking through a winter wonderland sounds about as enjoyable as visiting the Ninth Circle of Hell and Jack Frost makes an appearance on your personal Ten Most Wanted list, call it gelicide, which is a very unpleasant-sounding synonym for frost. Good luck pinning any criminal charges on Frost, though, as here the -cide ending means "fall," as in "fall down," rather than "kill."