snap out of it
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snap out of (something)
1. To suddenly recover or be freed from some negative or undesirable condition, emotion, or situation. Alex has been really gloomy lately. I hope he snaps out of it soon, because we'll need him to present our project to the supervisor next week. The company is hoping to snap out of their recent sales slump with the launch of their latest smartphone.
2. To make someone abruptly recover some negative or undesirable condition, emotion, or situation. In this usage, a name, noun, or pronoun is used between "snap" and "out." I was in a state of shock after crash, but hearing my daughter's cries snapped me out of it. The president's emergency funding measures seem to have snapped the country out of the recession.