This is it. I'm through, done, finished, completed.
3 seconds sound clip from The Honeymooners (1955) - The Sleepwalker sitcom.
You can hear this line at 00:04:38.090 in the Blu-ray version of the TV Series.
Quote context
[...]
- I will not keep my voice down!
- You know how long it's going to take me to go back to sleep? Two hours! At least two hours!
- You got to be a little patient. You know, Ed is sick.
- This is it. I'm through, done, finished, completed.
- But, after all, somebody's got to go with Ed when he starts to walk in his sleep.
- Yeah, well, it's not going to be me 'cause I'm going to be in there sleeping.
- If he needs somebody to go with him, let him hire another sleepwalker.
[...]