Noun
panic party (plural panic parties)
(nautical, military) A group of sailors given the task of pretending to abandon ship, so as to encourage a submarine to approach so that it can be attacked.
A third "panic party" went over the side, leaving only two guns manned. Source: Internet
Dunraven made smoke and sent off a panic party (a small number of men who "abandon ship" during an attack to continue the impersonation of a merchant). Source: Internet
A second "panic party" abandoned ship. Source: Internet