blow the coop
To leave or escape (something). This lecture is so boring. Come on, let's blow the coop and go get a drink somewhere! I'm definitely blowing the coop when I turn 18—I can't wait to have a little freedom! When I was a college senior, I wanted to blow the coop too, but, let me assure you—being in college is way more fun than working a 9–5 job!
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