What is the definition of 'scuttlebutt' in naval language?

In naval language, 'scuttlebutt' refers to a rumor or gossip that is shared among sailors. The term originates from the physical scuttlebutt, which is a cask used to hold drinking water on ships. Sailors would gather around the scuttlebutt to drink water, and during these gatherings, they would often share news, stories, and gossip, thus linking the term to informal communication and rumors.

The other options do have their own definitions but do not align with the primary meaning of 'scuttlebutt' in a naval context. For instance, while the scuttlebutt itself serves as a drinking fountain, the term's evolution connects more to the social interactions and discussions that occur around it. Job specialty titles and phrases indicating a start to the day do not resonate with the historical or contemporary use of 'scuttlebutt' in naval vernacular. Hence, understanding scuttlebutt primarily as a term for rumors highlights its role in naval culture and communication.