go from 0 to 100

verb3

1. •
   To shift from being nearly non-existent to being very obvious and plain. To increase explosively in intensity.

   • The level of awkwardness in the room went from 0 to 100 real quick.
2. •
   To shift from a calm state to an agitated state.

   • I don't like how the movie goes from 0 to 100 at the end for no reason.
3. •
   To snap (suffer a mental breakdown, usually while under tension).

   • He went from 0 to 100 in an instant.