That's it!

that's it

1. That is the end of that. That's it, everyone, thank you for listening. There are refreshments in the other room.
2. I've had enough of that. That's it! I can't listen to you two fighting anymore, I'm getting out of here!
Farlex Dictionary of Idioms.

That's it!

 
1. Inf. That does it!; That's the last straw! That's it! I'm leaving! I've had enough! Okay. That's it! I'm going to report you to human resources!
2. That is the answer! That's it! You are right. That's it! You got the right answer.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • that's it
  • that's all
  • refreshment
  • horizontal refreshments
  • listen in
  • listen in (on someone or something)
  • cut (someone or something) short
  • cut short
  • cut somebody short
  • cut something short
References in classic literature
"So that's it! I should imagine, though, she might reckon on a better match," said Vronsky, drawing himself up and walking about again, "though I don't know him, of course," he added.
Two bins and that's it! Other areas have all sorts of collections.
Around 200 opposition members present at Wednesday's press conference chanted 'Down, that's it!' - one of the main rallying calls of the protests.
So, after 38 years, that's it! I've thoroughly loved every second, enjoyed meeting and getting to know many new people, enjoyed all the news, bits and pieces you sent me, even the snide rumours and dirty lies!
And what about folk without any food It's all his fault, Him, the "Big Dude!" That's it! Blame God, it's easy to do, It takes all the focus from me and from you.
If you want to be part of a team that will hopefully raise over PS5,000 then sign up for one hour of volunteering, that's it!
"That's it! We're going to continue, we're gonna go all the way!
That's it!" It's understood United do not want to sell Pogba this summer, despite Mourinho looking to bring in a second midfield signing after the PS52m deal for Brazilian international Fred is completed.
"That's it! Natuloy din!" said Senator Sotto in a selfie with his wife Helen Gamboa, with the newly weds on the background.
The Broom Cupboard, that's it! Show you and your partner are most at odds about John watches Wheeler Dealer non-stop and I hate it.
KB Seven @ | So that's it! It's the kids and soft drinks wot did it.
1 Blend the ingredients together and that's it! This makes more than you need but it is good to drizzle on all sorts of things such as grilled vegetables, salads and whatever you fancy.
Finally the mouse loses all patience: "That's it! I'm done!
THAT'S it! My mind is made up....I am now for the UK quitting the EU....and it's all thanks to the EU itself.
That's it! PS50 says we finish above you next season."