On being pushed to the limit of your patience
That’s the straw that broke the camel’s back. (cliché)
= That’s the minor thing that will finally trigger some activity.
That’s the last straw! (cliché)
the last straw = the straw that broke the camel’s back
That does it!
I’ve had it.
That tears it. (idiomatic)
This is too much.
This is more than I can bear.
This is more than I can take.
This is more than I can stand.
That’s just what I needed.
I needed that like a hole in the head.(sarcastic)
That’s a fine how-do-you-do.
Here’s a fine how-do-you-do.
Well, that takes the cake!(idiomatic)
That’s just swell! (sarcastic)
That’s just great! (sarcastic)
= What else could possibly happen at this point?