faster than you can say Jack Robinson

faster than you can say Jack Robinson

Extremely quickly; almost immediately; suddenly or in a very short space of time. Once I'm finished with high school, I'll be outta this two-bit town faster than you can say Jack Robinson! I was out fishing one day when, faster than you can say Jack Robinson, a 20-pound trout jumped out of the water and right into my lap!See also: can, faster, jack, Robinson, say