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said when someone or something has caused damage or a difficulty ("That's done it!" said Anna as she looked at the damage. "Now I really will have to get a new car."  cambridge.org); an exclamation of frustration when something is ruined (collinsdictionary.com) | |||
| an exclamation when something is completed (collinsdictionary.com) | |||
| I've had it, that's more than I can tolerate (primarily heard in UK • OK, that's done it, I'm calling the police—it's 2 AM and that party is still blasting music! thefreedictionary.com) | |||
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that's : 1 phrase in 1 subject |
| Abbreviation | 1 |