The act of deficating on an automobile windshield. It can be used in place of or conjunction with the built-in heater to help remove frost or ice. A variation of the Cleveland Steamer or Boston Pancake.
"Dude, I can't see, there's too much ice on the windshield"
"No problem I'll use the Detroit Defroster to 'clear' that right up"
"No problem I'll use the Detroit Defroster to 'clear' that right up"
by phishQuotes August 31, 2013