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.
Words nearby that does it
tharp,
tharsis,
thasos,
that,
that ain't hay,
that does it,
that is,
that makes two of us,
that will do,
that'll be the day,
that's