that's done it

phrase

Used to express annoyance or announce that one has reached the limit of one's patience or temper.

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Meanings

phrasethat's done it!
  1. UKinformalUsed to express annoyance or announce that one has reached the limit of one's patience or temper.
  2. idiomaticUsed to announce a successful solution to a problem.
Cite this entry
APA

that's done it. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/that's%20done%20it

MLA

“that's done it.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/that's%20done%20it. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “that's done it,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/that's%20done%20it.

Source: that's done it on Wiktionary, CC BY-SA 4.0.