I finished the last page, so that's it.
that’s it
idiomyou use this to say that something is finished or that there is nothing more to do. it can also mean that someone is correct or has done something perfectly.
After checking the final numbers three times, she closed her laptop and said, that's it, the report is done.
He placed the final piece into the puzzle, stood back to admire his work, and whispered that's it, the image is complete.
Last updated April 22, 2026