Wiktionary
adv. Very easily, with little effort.
Usage examples of "snap of a finger".
Now, with the snap of a finger, Shaddam had the power to elevate a worthy commoner to noble status, to destroy worlds, or to bring Great Houses crashing down.
These are creatures that can move at super-fast speeds and flick you into the middle of next week with a snap of a finger.
You can't end that kind of relationship with the snap of a finger.
At the snap of a finger, the palace rose into the air and sped over the Sultan's kingdom, above the heads of his astonished subjects.
But he had also been a drug, she was now realizing, a magic genie that could give you anything you wanted or needed at the snap of a finger.
When something tragic like that happens, it reminds you that lives can change with the snap of a finger.