before you can say Jack Robinson

Meaning

Phrase

  • Very quickly; quicker than one expects.

Related

Similar words

Origin

  • Uncertain. There is some speculation that this is a reference to Sir John Robinson, a Lieutenant at the Tower of London around 1600, but there is nothing known about him that is associated with speed (Samuel Pepys called him as “a talking bragging bufflehead.”), and the phrase does not appear in print until 1778.

Modern English dictionary

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