What becomes a big nasty blackish hunk of frozen street slush, and will attach to the back of a wheel well, only to drop in inopportune places, and look all nasty-assty.
Boss; Look, you're in charge of the parking clean up. I want all those ice turds cleaned up and off the premisses by closing time or you are fired!
Lackey; Damn man, them rustlucks is froz down like Santa's balls.
Boss; Well I nearly broke my toe on one just now, and if you don't get them gone right now you will be thawing Santa's balls in your next line of work!