that's it

• that is it

• Audio (Mid-Atlantic)

  (file)

that's it

1. that's all (there is nothing more to the issue)

   Synonyms: is all, that's all, that's your lot

   So, that's it? I thought there would be some more.

   I'm not going, and that's it.

   • 1986, Aliens:

     That's it, man. Game over, man. Game over! What the fuck are we gonna do now?

2. yes!, exactly!, bingo!
   • 1865, Lewis Carroll, Alice's Adventures in Wonderland, Chapter 7:

     A bright idea came into Alice’s head. “Is that the reason so many tea-things are put out here?” she asked.
     “Yes, that’s it,” said the Hatter with a sigh: “it’s always tea-time, and we’ve no time to wash the things between whiles.”

• this is it