that does it

Also, that does the trick. The last requirement has been fulfilled; that accomplishes it. For example, That does it; we're ready to send in the application now, or That last screw does the trick—it's fully assembled. Grose's Dictionary of the Vulgar Tongue (1823) defines do the trick as “accomplish a robbery or other business successfully,” and presumably the it in the first term stands for the trick. [Early 1800s] Also see that's that.

Nearby words

  1. tharp, twyla,
  2. tharsis,
  3. thasos,
  4. that,
  5. that ain't hay,
  6. that is,
  7. that makes two of us,
  8. that will do,
  9. that'll be the day,
  10. that's

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.