"Listless vessels" is a nautical term that has recently become a political insult. The term originated in the days of sail when a ship in calm waters rode on an even keel or level with the horizon, without heeling or listing to one side or the other in a strong wind. Therefore, a vessel that has no wind or list is "listless" and slow moving. In the context of politics, the term has been used to describe supporters who lack enthusiasm or energy. The term has been used by Florida Governor Ron DeSantis to describe Trump supporters who are not actively engaged in politics. The term has caused controversy and sparked a feud between DeSantis and some Trump supporters.