To it is a figure of speech meaning to something quickly?

You're likely thinking of the phrase "in a flash". It's a common figure of speech that means something happened very quickly, almost instantly.

Here are a few other figures of speech that convey a similar meaning:

* In the blink of an eye: This means something happened incredibly fast, as quickly as you can blink.

* In a heartbeat: This emphasizes how fast something happened, comparing it to the speed of a heartbeat.

* Like a shot: This emphasizes the rapid movement, comparing it to the speed of a bullet.

* Before you can say Jack Robinson: This is a playful expression, emphasizing the extreme speed.

Let me know if you have any other figures of speech you want to explore!