before you can say Jack Robinson
old-fashioned informalused to say that something happens very quickly:
Before you could say Jack Robinson, she'd jumped into the car and driven away.
Thesaurus: synonyms and related words
Fast and rapid
- a mile a minute idiom
- apace
- as fast as your legs would carry you idiom
- as if it is going out of style idiom
- at a rate of knots idiom
- crash
- fleet
- have a heavy foot idiom
- hotfoot
- in the twinkling of an eye idiom
- Jack Robinson
- lickety-split
- lightning
- like a shot idiom
- mile
- smartly
- souped-up
- spread like wildfire idiom
- swift
- tilt
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