Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “and that's flat!”

and that's flat!

UK informal
used to tell someone that the decision you have just announced will not change even if they try to persuade you to change it: I'm not coming, and that's flat!CertaintyConfidence and self-assurance
(Definition of and that's flat! from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Browse related topics

You are looking at an entry to do with Certainty, but you might be interested in these topics from the Chance and possibility topic area:

Translations of “and that's flat!”

Word of the Day

sail

When a boat or a ship sails, it travels on the water.

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More