What does Ass End of a Train Wreck mean?

Ass End of a Train Wreck meaning in Urban Dictionary

More often than not, in terms of train wrecks get, the butt end of a train wreck is arguably probably the most desirable position a person might inhabit whilst finding these are generally in the middle of a train wreck in process. The exception for this concept, naturally, would be in the event that a train got ass wrecked. Even so, the ass-end of the offending party would most certainly fare significantly much better than that of the violated party.