A swabby is a sailor, especially a low-ranking one who does cleaning and other jobs on a ship.
The word swabby can make people think of the sea, ships, and hard work.
Examples:
The swabby cleans the ship.
I saw the swabby on the big boat.
The swabby works hard every day.
The swabby is the boss of the ship!
The swabby is the most important person on the ship.
The swabby is always cleaning and working on the ship.