detroit iron 

any muscle car from the 60s such as chevy pontiac ford dodge chrysler buick

detroit iron by Anonymous November 3, 2003

Detroit iron 

A big, heavy, bad-handling car made in Detroit. A road locomotive.

This expression was common in the 1960s when cars that handled well were made in Europe. American cars were oversized, wallowing pigs, and you had to make reservations to go around a corner.

That dude is driving a piece of Detroit iron. Let's moon him, and we can lose him on a winding road.

Detroit iron by Joao Bufamarillo May 15, 2005

Detroit Iron 

When a normal person eats out a female with downsyndrome.

Man! I had such a good time getting detroit iron from my retarded neighbor!

I love the feeling of retarded vagina, so I like to give detroit iron as often as possible.

Detroit Iron by blumpkinlover69 June 17, 2009