before you could say Jack Robinson or before you can say Jack Robinson extremely quickly or suddenly
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use Jack Robinson in a sentence
Here am I, started two days after you, tripping up your heels in less time than it takes to say Jack Robinson!Grif | B. L. (Benjamin Leopold) Farjeon
He ran out the front door of the doll house, and over the piazza, and down the steps before you could say "Jack Robinson."
He and Bridget packed them off before they could say Jack Robinson.Those Dale Girls | Frank Weston Carruth
Into the Mortons' gate he slipped, and before anyone could say "Jack Robinson" he had crept under the steps of the side entrance.Jerry's Reward | Evelyn Snead Barnett
"Before you could say Jack Robinson" is a phrase, still current, derived from this highly droll song.Old and New London | Walter Thornbury
Other Idioms and Phrases with Jack Robinson
see before you can say Jack Robinson.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.