From Longman Dictionary of Contemporary Englishthat’s thatthat’s thatEMPHASIZEused to emphasize that a situation or a decision cannot be changed I refuse to go and that’s that! There’s no money left, so that’s that. → that
Examples from the Corpus
that’s that• We're offering $2700, and that's that.• And Mr Schofield's dead, Henry thought sadly, and that's that.• As a medium of exchange it no longer works, and that's that.• He is what he is and that's that.• It's just Barry, and that's that.• Many seem to be content to say that fashions change and that's that.• When Leeds sold him I thought bollocks, that's that then.• If you don't turn up, that's that, they don't do anything more about it.• Sign the document, pay the fee and that's that until the next time. 