It's worse than that it's dead Jim

[fenglish]

Hi,

What does the "it's dead Jim" mean in the following sentence?

It's worse than that it's dead Jim

I found it from this Youtube:

I will explain it as (but I'm not sure):
It's worse than that it's totally dead

Thanks.

 

[Rover_KE]

Removing the unnecessary capitals, and inserting the correct punctuation, it should be It's worse than that – he's dead, Jim.

He's not just sick – he's dead.

 

[fenglish]

Removing the unnecessary capitals, and inserting the correct punctuation, it should be It's worse than that – he's dead, Jim.

He's not just sick – he's dead.

If a man or a woman called "ExampleName", does it need to replace the "Jim" with the real name "ExampleName"?

A: It's worse than that it's dead Jim.
B: It's worse than that it's dead ExampleName.

Which is correct when talking to ExampleName?

 

[dunchee]

It's a reference to a famous line uttered by Dr. McCoy from the TV show Star Trek: The Original Series:

"Jim" is the Captain of the starship.

Its meaning is what Rover said in post #2.

The YouTube clip you posted is about "the battery on an old synth"(I copied it from the description below the clip) and "it" in "it's dead" refers to the battery. So basically the guy is saying the condition of the battery is really bad. There's no point in keeping it. Just replace it.

If a man or a woman called "ExampleName", does it do I need to replace the "Jim" with the real name "ExampleName"?

A: It's worse than that it's dead Jim. It's worse than that – it's dead, Jim.
B: It's worse than that it's dead ExampleName. It's worse than that – it's dead, ExampleName.

It only works if you and the person you talk to are Star Trek fans. (And you know what "it" is.)