icedup Needing defrosting Like some winter windshields Got slick after sleet Got slick Got frosty Got dangerous, as a road, perhaps Froze solid Froze over Became impassable, in a way Acquired a slick coat Frosted Jammed, in a way Became a winter hazard, as a road Slick, in a way Needed a coating of heated propylene glycol, say Frosted desserts, the second sent back Frozen over Became frosted Became slick