In the movie The Outlaw Josie Wales what is a Missouri boat ride?

In "The Outlaw Josie Wales," a Missouri boat ride refers to a form of execution by hanging. This term is used when characters discuss the fate of those who oppose the Confederacy, implying that they would be taken to their deaths in a similar fashion. The phrase symbolizes the brutal reality of the Civil War era and the harsh consequences faced by outlaws and those deemed traitors.