Hollywood is so lost in its cliches it isn't even funny. I don't think I've ever seen a sub flick (even modern ones) where they don't have active sonar pinging in the background...even aboard a modern attack sub or boomer.
Like what has already been described, it's most often referred to as "seeing with cops eyes." Same thing is true if you've undergone specialized training in the military, and in civilian life you pick up on security/clandestine things that the general public is completely blind to observing.
Ah, "over AND out". That used to tick off one of my military science instructors, well that and "Roscoe P. Coltrain" calling in coordinates that needed some "whoopin'."
Ah yes. I recall fondly having fun over the radio whenever we knew no one important was listening.
You guys would love Plan 9 from Outer Space.
Actually, he died filming a completely different movie for Wood. Old Ed then took the Lugosi footage and wrote the script for Plan 9 around it so he could cash in on the whole,"Bela Lugosi's last film!" angle.
Another Wood/Lugosi masterpiece is Glen or Glenda? Highly recommended.
kinda like how curly did a lot of 3 stooges sketches after he died.
Are you sure you're not thinking of Shemp? That guy was my favorite stooge!