When the hell did this happen?

From OAPedia.com

A line from Back to the Future that has found a special place on the Opie and Anthony Show in the form of a sound bite. For those unfamiliar with the movie, it is a question that Marty McFly’s brother (The guy who played Jimmy Olsen on Superman) asks him when Marty (who is not yet aware of the extent that his exploits in 1955 altered the course of his family’s life) makes a about the family car being wrecked.