Wiktionary
boatswain's pipes
n. (plural of boatswain's pipe English)
Usage examples of "boatswain's pipes".
He was received in Navy fashion with sideboys attending the side and a long flourish on boatswain's pipes as he stepped on board.
The sun was shining, and boatswain's pipes and loudspeaker's calls were filling the air in the repair basin.