English version

at the drop of a hat

From Longman Dictionary of Contemporary Englishat the drop of a hatat the drop of a hatIMMEDIATELYimmediately and without pausing to think about what you are going to do Some of these corporations threaten to sue at the drop of a hat. drop
Examples from the Corpus
at the drop of a hatHe's willing to organize anything guests want at the drop of a hat.
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