1) Ship type 
[comedy act] Jollyboat is a British musical comedy double act. Formed in Liverpool in 2010, and now based in London, the act comprises brothers Ed and Tommy Croft. They are known for their Pirate Pop Songs and Keyboard Love Song. In 2011, Jollyboat won the Musical Comedy Awards. They have performed shows at the Edinburgh Fringe Festival eve...[dinghy] Traditionally the term jolly boat refers to a boat carried by a ship, powered by 4 or six oars and occasionally yawl rigged sails. The term might also refer to ...
small boat kept hoisted at ship's stern
A small but happy craft, perhaps even one which is a little dinghy.
A jollyboat or jolly-boat is a small boat usually hoisted at the stern of a ship, and used especially for communicating with the shore.