drill over


Senior Member
It's from a documentary about sinking of Titanic, the commander is speaking to the crew in the engine room:

All engines stop! Two thirty. All hands to the boats! –Yes, Sir. –All hands to the boats! Very good, men! Stand down! Drill over! Get back to your posts and stand by! Dead slow ahead.

Can someone help me with phrase in italics? I couldn't find ''drill'' in combination with ''over'' in any dictionary.
  • < Previous | Next >