Before you can say Jack Robinson
Suggest a CorrectionMeaning
So quickly that there is scarcely time to notice, respond or prepare. Informal and mildly comic. Both 'can' and 'could' forms are established. Regional use: British English, with wider international recognition.
Origin
The expression is in print in the Edinburgh Magazine in 1762, already using Jack Robinson as the measure of a very short interval. Numerous later stories identify a particular Robinson, but none has displaced the simpler possibility that this was a convenient generic name in a comic formula.
Research Sources
Variants
- Before you could say Jack Robinson
Usage Examples
- Before you can say Jack Robinson, the tide will cover that path.
- The last pastries vanished before you could say Jack Robinson.
- He signed the form and, before you can say Jack Robinson, a van was at the gate.