Announcement given at reveille to persons sleeping in hammocks. It means Get up and lash up your hammocks. This term now applies to ships equipped with bunks.
Compass (The National Training Portal of The U. S. Naval Sea Cadet Corps), appendix I, Glossary, VA, USA 2012. http://compass.seacadets.org/pdf/nrtc/bmr/14325_in d.pdf, (Mrtm/Nav - Amer) {558}