1. A noun that refers to the anus and rectal cavity as a means of travel. This can be used to describe a person of German origin's anus. this can also be used to describe a path that a german man may wish to take. Origins can be traced to a german beer festival in Wisconsin.
Bob wanted to travel on the chocolate autobahn but his girlfriend was not so much into anal sex.

After a great many liters of beer, hans took a ride on the Chocolate Autobahn. This worked out well for frank, as he is into gay sex.
by Chris S. Andy D. September 18, 2006
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